Publications and communications of Eric Ziemons

Kemik, K., De Bleye, C., Sacre, P.-Y., Hubert, P., & Ziemons, E. (05 May 2026). Proof of Concept for a Controlled Raman-Compatible Skin-Mimicking Hydrogel Substrate for Chemical Imaging Technique Development. Molecules, 31 (9), 1530. doi:10.3390/molecules31091530

Zhang, Y., Houari, S., Van Laethem, T., Kumari, P., Ziemons, E., Hubert, P., & Hubert, C. (12 March 2026). A case study on N-nitrosamine investigation in a marketed drug: from analytical procedure validation to risk mitigation decision. Frontiers in Analytical Science, 6. doi:10.3389/frans.2026.1772719

Sacre, P.-Y., Waffo Tchounga, C. A., De Bleye, C., Hubert, P., Marini Djang'Eing'A, R., & Ziemons, E. (2026). White analytical chemistry evaluation of medicines quality screening devices [Paper presentation]. Medicine Qual i ty, Innovat ion & Pol icy Conference, Oxford, United Kingdom.

Dowek, A., Seidakhanova, A., Bourcy, Q., Jennotte, O., Evrard, B., Crunenberg, R., Ziemons, E., Do, B., Annereau, M., Rieutord, A., & Lechanteur, A. (2025). Ensuring quality control in HME, a quantitative analysis of hydrocortisone filament using a portable Raman spectrometer. Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, 126968. doi:10.1016/j.saa.2025.126968

Zhang, Y., Widart, J., Ziemons, E., Hubert, P., & Hubert, C. (21 July 2025). N-nitrosamine risk assessment in pharmaceuticals: Where are we from a regulatory point of view in 2025? Journal of Pharmaceutical and Biomedical Analysis Open, 6 (December), 100084. doi:10.1016/j.jpbao.2025.100084

Bya, L.-A., Bottero, B., Coeurderoi, A., Dinh, T. N., Sacre, P.-Y., Ziemons, E., Cataldo, D., Piel, G., Evrard, B., & Lechanteur, A. (10 June 2025). Formulation of a dry powder for inhalation combining ciclesonide and indacaterol maleate using spray drying. International Journal of Pharmaceutics, 678, 125696. doi:10.1016/j.ijpharm.2025.125696

Zhang, Y., Houari, S., Van Laethem, T., Dispas, A., Ziemons, E., Hubert, P., & Hubert, C. (June 2025). Innovative QSRR modeling approach for the development of an ultra-sensitive LC-MS/MS method for trace analysis of N-nitrosamines. Journal of Pharmaceutical and Biomedical Analysis Open, 5, 100064. doi:10.1016/j.jpbao.2025.100064

Kemik, K., De Bleye, C., Sacre, P.-Y., Hubert, P., & Ziemons, E. (31 March 2025). OPTIMIZATION OF A SURFACEENHANCED RAMAN CHEMICAL IMAGING METHOD FOR PHARMACEUTICAL ACTIVE INGREDIENT TRACKING IN THE CONTEXT OF IN-VITRO SKIN EQUIVALENT-MODEL PERMEATION STUDIES [Paper presentation]. 22nd Forum of Pharmaceutical Sciences, La Roche-en-Ardenne, Belgium.

Zhang, Y., Houari, S., Van Laethem, T., Ziemons, E., Hubert, P., & Hubert, C. (March 2025). Simultaneous detection of small molecule N-nitrosamine impurities by LC MS/MS in a pharmaceutical formulation [Paper presentation]. 22nd Forum of Pharmaceutical Sciences, Roche-en-Ardenne, Belgium.

Zhang, Y., Houari, S., Van Laethem, T., Ziemons, E., Hubert, P., & Hubert, C. (March 2025). Approche in silico flexible pour le développement de méthodes quantitatives des nitrosamines dans un médicament [Paper presentation]. 16ème Congrès de l'Association Francophone des Sciences Séparatives (SEP25).

Coic, L., Gomez, Y. R., Sacre, P.-Y., Ziemons, E., Vitale, R., & Ruckebusch, C. (2025). Essential spectra to improve vibrational imaging of pharmaceutical samples. Microchemical Journal, 112751. doi:10.1016/j.microc.2025.112751

De Bleye, C., Beckers, P., Kemik, K., Horne, J., Sacre, P.-Y., Hubert, P., & Ziemons, E. (2025). Is surface-enhanced Raman spectroscopy (SERS) a good alternative to separation techniques for nicotine dosage in e-liquid boosters? Author links open overlay panel. Journal of Pharmaceutical and Biomedical Analysis Open. doi:10.1016/j.jpbao.2025.100054

Sacre, P.-Y.* , Waffo Tchounga, C. A.* , De Bleye, C., Hubert, P., Marini Djang'Eing'A, R., & Ziemons, E. (December 2024). WHITE ANALYTICAL CHEMISTRY EVALUATION OF MEDICINES QUALITY SCREENING DEVICES IN LOW- AND MIDDLE-INCOME COUNTRIES FIELD SETTINGS. Green Analytical Chemistry, 11, 100158. doi:10.1016/j.greeac.2024.100158

Horne, J., Beckers, P., Kemik, K., De Bleye, C., Sacré, P. Y., Thelen, N., Hubert, P., Ziemons, E.* , & Hubert, C.*. (2024). Determination of Size, Size Distribution, and Concentration of Nanoparticles Using ICP‐MS in the Context of SERS Substrates. Journal of Raman Spectroscopy. doi:10.1002/jrs.6746

Horne, J.* , Beckers, P.* , Sacre, P.-Y., Francotte, P., Caudron, E., Hubert, P., Hubert, C., De Bleye, C.* , & Ziemons, E.*. (2024). Surface enhanced transmission Raman spectroscopy: Quantitative performances for impurity analysis in complex matrices. Journal of Pharmaceutical and Biomedical Analysis. doi:10.1016/j.jpba.2024.116469

Dispas, A., Emonts, P., Vandormael, D., Bernier, D., Dortu, F., Ziemons, E., Hubert, P., Crommen, J., & Fillet, M. (September 2024). Hydrodynamic injection for microchip electrophoresis: Development of an innovative passive system. Green Analytical Chemistry, 10, 100141. doi:10.1016/j.greeac.2024.100141

Nokin, M.-J., Darbo, E., Richard, E., San José, S., de Hita, S., Prouzet-Mauleon, Turcs, B., Gerardelli, L., Crake, R., Velasco, V., KOOPMANSCH, B., Lambert, F., Xue, J. Y., Sang, B., Horne, J., Ziemons, E., Villanueva, A., Blomme, A., Herfs, M., ... Santamaria, D. (2024). In vivo vulnerabilities to GPX4 and HDAC inhibitors in drug-persistent versus drug-resistant BRAFV600E lung adenocarcinoma. Cell Reports Medicine. doi:10.1016/j.xcrm.2024.101663

Horne, J., Beckers, P., Sacre, P.-Y., De Bleye, C., Francotte, P., Thelen, N., Hubert, P., Ziemons, E.* , & Hubert, C.*. (22 July 2024). Optimisation of a Microwave Synthesis of Silver Nanoparticles by a Quality by Design Approach to Improve SERS Analytical Performances. Molecules, 29 (14), 3442. doi:10.3390/molecules29143442

Waffo Tchounga, C. A., Sacre, P.-Y., De Bleye, C., Marini Djang'Eing'A, R., Hubert, P., & Ziemons, E. (11 June 2024). La spectroscopie proche infrarouge appliquée à l’analyse pharmaceutique : Du contrôle analytique des procédés à la protection du patient [Paper presentation]. Hélio-SPIR, Montpellier, France.

Ouedraogo, R. D., Bakouan, C., Sakira, A. K., Sorgho, B., Guel, B., Somé, T. I., Hantson, A.-L., Ziemons, E., Mertens, D., Hubert, P., & Kauffmann, J.-M. (22 April 2024). The Removal of As(III) Using a Natural Laterite Fixed-Bed Column Intercalated with Activated Carbon: Solving the Clogging Problem to Achieve Better Performance. Separations, 11 (4), 129. doi:10.3390/separations11040129

Bya, L.-A., Coeurderoi, A., Dinh, T. N., Bottero, B., Sacre, P.-Y., Ziemons, E., Cataldo, D., Piel, G., Lechanteur, A., & Evrard, B. (17 April 2024). Assessment of the Effects of Drying Methods on Powder Properties: A Comparative Study of Spray Drying from Solution and Suspension [Poster presentation]. 9th Workshop on Pulmonary Drug Delivery, Dublin, Ireland.

Awotunde, O., Cai, J., Azar, C. G. E., Medina, D., Eyolfson, S. I., Hayes, K., Waffo Tchounga, C. A., Marini Djang'Eing'A, R., Ziemons, E., Sacre, P.-Y., & Lieberman, M. (2024). Field assessment of active ingredient quantity in pharmaceutical tablets with limited calibration of near infrared spectra: An application to ciprofloxacin tablets. Journal of Pharmaceutical and Biomedical Analysis, 116189. doi:10.1016/j.jpba.2024.116189

Horne, J., Beckers, P., Kemik, K., De Bleye, C., Hubert, P., Ziemons, E., & Hubert, C. (31 January 2024). METALLIC NANOPARTICLES CHARACTERIZATION BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY [Poster presentation]. CIRMday 2024, Liege, Belgium.

Jambo, H., Dispas, A., Pérez-Mayán, L., Rodríguez, I., Ziemons, E., & Hubert, P. (2024). Comprehensive analysis of vitamin D3 impurities in oily drug products using supercritical fluid chromatography–mass spectrometry. Drug Testing and Analysis. doi:10.1002/dta.3670

Kemik, K., Sacre, P.-Y., De Bleye, C., Hubert, P., & Ziemons, E. (2024). Hyperspectral imaging based on surface enhanced Raman scattering: First step in the development of a spray-coating method on biological sample [Paper presentation]. CIRMday 2024, Liège, Belgium.

Waffo Tchounga, C. A., Marini, D. E. A., Nnanga Nga, E., Ciza Hamuli, P., Ngono Mballa, R., Hubert, P., Ziemons, E., & Sacre, P.-Y. (2023). In-Field Implementation of Near-Infrared Quantitative Methods for Analysis of Medicines in Tropical Environments. Applied Spectroscopy, 37028231201653. doi:10.1177/00037028231201653

Waffo Tchounga, C. A., Sacre, P.-Y., Ravinetto Raffaella, Marya Lieberman, Ciza Hamuli, P., Ngono Mballa Rose, Ziemons, E., Hubert, P., & Marini Djang'Eing'A, R. (11 August 2023). Usefulness of medicine screening tools in the frame of pharmaceutical post-marketing surveillance. PLoS ONE, 18 (8), 0289861. doi:10.1371/journal.pone.0289865

Horne, J., De Bleye, C., Lebrun, P., Kemik, K., Van Laethem, T., Sacre, P.-Y., Hubert, P., Hubert, C.* , & Ziemons, E.*. (2023). Optimization of silver nanoparticles synthesis by chemical reduction to enhance SERS quantitative performances: early characterization using the quality by design approach. Journal of Pharmaceutical and Biomedical Analysis, 115475. doi:10.1016/j.jpba.2023.115475

Nardecchia, A., Vitale, R., Ziemons, E., & Duponchel, L. (05 January 2023). Improvement of pixel classification by the simultaneous use of spectral and spatial information in the framework of spectroscopic imaging. Analytica Chimica Acta, 1242, 340805. doi:10.1016/j.aca.2023.340805

Waffo Tchounga, C. A., Sacre, P.-Y., Ciza Hamuli, P., Ngono Mballa, R., De Bleye, C., Ziemons, E., Hubert, P., & Marini Djang'Eing'A, R. (2023). Prevalence of Poor Quality Ciprofloxacin and Metronidazole Tablets in Three Cities in Cameroon. American Journal of Tropical Medicine and Hygiene. doi:10.4269/ajtmh.22-0221

Sacre, P.-Y., De Bleye, C., Hubert, C., & Ziemons, E. (October 2022). Handheld Raman for quality control [Paper presentation]. Charisma Raman School, Turin, Italy.

Dispas, A., Sacre, P.-Y., Ziemons, E., & Hubert, P. (22 September 2022). Emerging analytical techniques for pharmaceutical quality control: Where are we in 2022? Journal of Pharmaceutical and Biomedical Analysis, 221, 115071. doi:10.1016/j.jpba.2022.115071

Avohou, T. H., Sacre, P.-Y., Hamla, S., Lebrun, P., Hubert, P., & Ziemons, E. (05 September 2022). Optimizing the soft independent modeling of class analogy (SIMCA) using statistical prediction regions. Analytica Chimica Acta, 1229, 340339. doi:10.1016/j.aca.2022.340339

Elderderi, S., Sacre, P.-Y., Wils, L., Chourpa, I., Elbashir, A. A., Hubert, P., Byrne, H. J., Boudesocque-Delaye, L., Ziemons, E., & Bonnier, F. (27 July 2022). Comparison of Vibrational Spectroscopic Techniques for Quantification of Water in Natural Deep Eutectic Solvents. Molecules, 27 (15), 4819. doi:10.3390/molecules27154819

Hamla, S., Sacre, P.-Y., Derenne, A., Cowper, B., Goormaghtigh, E., Hubert, P., & Ziemons, E. (09 July 2022). A New Alternative Tool to Analyse Glycosylation in Monoclonal Antibodies Based on Drop-Coating Deposition Raman imaging: A Proof of Concept. Molecules, 27 (14), 4405. doi:10.3390/molecules27144405

Ciza Hamuli, P., Sacre, P.-Y., Waffo Tchounga, C. A., Kimbeni, T. M., Masereel, B., Hubert, P., Ziemons, E., & Marini Djang'Eing'A, R. (July 2022). Comparison of several strategies for the deployment of a multivariate regression model on several handheld NIR instruments. Application to the quality control of medicines. Journal of Pharmaceutical and Biomedical Analysis, 215, 114755. doi:10.1016/j.jpba.2022.114755

Bielfeldt, S.* , Bonnier, F.* , Byrne, H. J.* , Chourpa, I.* , Dancik, Y.* , Lane, M. E.* , Lunter, D. J.* , Munnier, E.* , Puppels, G.* , Tfayli, A.* , & Ziemons, E.*. (14 June 2022). Monitoring dermal penetration and permeation kinetics of topical products; the role of Raman microspectroscopy. TrAC: Trends in Analytical Chemistry, 156, 116709. doi:10.1016/j.trac.2022.116709

Avohou, T. H., Sacre, P.-Y., Hubert, P., & Ziemons, E. (04 March 2022). Interpretable One-Class Classification of Raman Spectra Using Prediction Bands Estimated by Wavelet Regression. Analytical Chemistry, 94, 4183-4191. doi:10.1021/acs.analchem.1c04098

Coic, L., Sacre, P.-Y., Dispas, A., De Bleye, C., Fillet, M., Ruckebusch, C., Hubert, P., & Ziemons, E. (March 2022). Selection of essential spectra to improve the multivariate curve resolution of minor compounds in complex pharmaceutical formulations. Analytica Chimica Acta, 1198, 339532. doi:10.1016/j.aca.2022.339532

Hamla, S., Sacre, P.-Y., Derenne, A., Derfoufi, K.-M., Cowper, B., Butré, C. I., Delobel, A., Goormaghtigh, E., Hubert, P., & Ziemons, E. (2022). A new alternative tool to analyse glycosylation in pharmaceutical proteins based on infrared spectroscopy combined with nonlinear support vector regression. Analyst. doi:10.1039/D1AN00697E

Kagheni Mbayahi, E., Kitasuvirwa, W., Ciza Hamuli, P., Waffo Tchounga, C. A., Hubert, P., Sacre, P.-Y., Ziemons, E., Kalonji, N. J.-B., & Marini Djang'Eing'A, R. (02 February 2022). Quality control of anti-infective medicines : case of ciprofloxacin and metronidazole formulations in Butembo [Poster presentation]. CIRM Day 2022, Liège, Belgium.

Sacre, P.-Y., Alaoui Mansouri, M., De Bleye, C., Coic, L., Hubert, P., & Ziemons, E. (25 January 2022). Evaluation of distributional homogeneity of pharmaceutical formulation using laser direct infrared imaging. International Journal of Pharmaceutics, 612 (121373). doi:10.1016/j.ijpharm.2021.121373

Deidda, R., Dispas, A., De Bleye, C., Hubert, P., & Ziemons, E. (2022). Critical review on recent trends in cannabinoid determination on cannabis herbal samples: From chromatographic to vibrational spectroscopic techniques. Analytica Chimica Acta, 1209, 339184. doi:10.1016/j.aca.2021.339184

Jambo, H., Dispas, A., Hubert, C., Lecomte, F., Ziemons, E., & Hubert, P. (2022). Generic SFC-MS methodology for the quality control of vitamin D3 oily formulations. Journal of Pharmaceutical and Biomedical Analysis. doi:10.1016/j.jpba.2021.114492

Sacre, P.-Y., De Bleye, C., Hubert, P., Marini Djang'Eing'A, R., & Ziemons, E. (2022). Interest of Raman spectroscopy for the detection and analysis of poor-quality medicines [Paper presentation]. 9th International Conference on Advanced Applied Raman Spectroscopy (RamanFest2022), Paris, France.

Sacre, P.-Y., Waffo Tchounga, C. A., Ciza Hamuli, P., Avohou, T. H., De Bleye, C., Hubert, P., Marini Djang'Eing'A, R., & Ziemons, E. (2022). Applications of vibrational spectroscopy and hyperspectral imaging for the analysis of substandard and falsified medicines [Paper presentation]. 12th International Symposium on Drug Analysis and the 32nd International Symposium on Pharmaceutical and Biomedical Analysis, Mons, Belgium.

Deidda, R., Avohou, T. H., Dumont, E., Hubert, C., Hubert, P., De Bleye, C., & Ziemons, E. (2021). Application of the analytical quality by design principles to the development of a qualitative surface-enhanced Raman scattering method: A proof of concept. Journal of Raman Spectroscopy. doi:10.1002/jrs.6249

Ciza Hamuli, P., Sacre, P.-Y., Kanyonyo, M. R., Waffo Tchounga, C. A., Borive, M. A., Coic, L., Mbinze, J., Hubert, P., Ziemons, E., & Marini Djang'Eing'A, R. (August 2021). Application of NIR handheld transmission spectroscopy and chemometrics to assess the quality of locally produced antimalarial medicines in the Democratic Republic of Congo. Talanta Open, 3, 100025. doi:10.1016/j.talo.2020.100025

Kasemiire, A., Avohou, T. H., De Bleye, C., Sacre, P.-Y., Dumont, E., Hubert, P., & Ziemons, E. (11 June 2021). Design of experiments and design space approaches in the pharmaceutical bioprocess optimization. European Journal of Pharmaceutics and Biopharmaceutics, 166 (September), 144-154. doi:10.1016/j.ejpb.2021.06.004

Deidda, R.* , Coppey, F.* , Damergi, D., Schelling, C., Coic, L., Veuthey, J.-L., Sacre, P.-Y., De Bleye, C., Hubert, P., Esseiva, P., & Ziemons, E. (2021). New perspective for the in-field analysis of cannabis samples using handheld near-infrared spectroscopy: A case study focusing on the determination of Δ9-tetrahydrocannabinol. Journal of Pharmaceutical and Biomedical Analysis. doi:10.1016/j.jpba.2021.114150

Coic, L., Sacre, P.-Y., Dispas, A., De Bleye, C., Fillet, M., Ruckebusch, C., Hubert, P., & Ziemons, E. (22 April 2021). Pixel-based Raman hyperspectral identification of complex pharmaceutical formulations. Analytica Chimica Acta, 1155, 338361. doi:10.1016/j.aca.2021.338361

Dumont, E., De Bleye, C., Rademaker, G., Coic, L., Horne, J., Sacre, P.-Y., Peulen, O., Hubert, P., & Ziemons, E. (01 March 2021). Development of a prototype device for near real-time surface-enhanced Raman scattering monitoring of biological samples. Talanta, 224, 121866. doi:10.1016/j.talanta.2020.121866

Avohou, T. H., Sacre, P.-Y., Lebrun, P., Hubert, P., & Ziemons, E. (01 February 2021). A probabilistic class-modelling method based on prediction bands for functional spectral data: Methodological approach and application to near-infrared spectroscopy. Analytica Chimica Acta, 1144, 130-149. doi:10.1016/j.aca.2020.11.039

Alaoui Mansouri, M., Ziemons, E., Sacre, P.-Y., kharbach, M., Barra, I., Cherrah, Y., Hubert, P., Marini Djang'Eing'A, R., & Bouklouze, A. (26 January 2021). Classification of polymorphic forms of fluconazole in pharmaceuticals by FT-IR and FT-NIR spectroscopy. Journal of Pharmaceutical and Biomedical Analysis, 196, 113022. doi:10.1016/j.jpba.2021.113922

Waffo Tchounga, C. A., Sacre, P.-Y., Ciza Hamuli, P., NGONO Mballa, R., Ziemons, E., HUBERT, P., & Marini Djang'Eing'A, R. (2021). Composition analysis of falsified chloroquine phosphate samples seized during the COVID-19 pandemic. Journal of Pharmaceutical and Biomedical Analysis, 194, 113761. doi:10.1016/j.jpba.2020.113761

Deidda, R., Schelling, C., Roussel, J.-M., Dispas, A., De Bleye, C., Ziemons, E., Hubert, P., & Veuthey, J.-L. (2020). The analysis of cannabinoids in cannabis samples bysupercritical fluid chromatography and ultra-high-performanceliquid chromatography: A comparison study. Analytical Science Advances, 1-13. doi:10.1002/ansa.202000091

Coppey, F., Bécue, A., Sacre, P.-Y., Ziemons, E., Hubert, P., & Esseiva, P. (10 September 2020). Providing illicit drugs results in five seconds using ultra-portable NIR technology: An opportunity for forensic laboratories to cope with the trend toward the decentralization of forensic capabilities. Forensic Science International, 317, 110498. doi:10.1016/j.forsciint.2020.110498

Coic, L., Sacre, P.-Y., Dispas, A., Dumont, E., Horne, J., De Bleye, C., Fillet, M., Hubert, P., & Ziemons, E. (01 July 2020). Evaluation of the analytical performances of two Raman handheld spectrophotometers for pharmaceutical solid dosage form quantitation. Talanta, 214, 120888. doi:10.1016/j.talanta.2020.120888

Dumont, E., De Bleye, C., Haouchine, M., Coic, L., Sacre, P.-Y., Hubert, P., & Ziemons, E. (05 June 2020). Effect of the functionalisation agent on the surface-enhanced Raman scattering (SERS) spectrum: Case study of pyridine derivatives. Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, 233, 118180. doi:10.1016/j.saa.2020.118180

De Bleye, C., Fontaine, M., Dumont, E., Sacre, P.-Y., Hubert, P., Theys, N., & Ziemons, E. (15 April 2020). Raman imaging as a new analytical tool for the quality control of the monitoring of osteogenic differentiation in forming 3D bone tissue. Journal of Pharmaceutical and Biomedical Analysis, 186, 113319. doi:10.1016/j.jpba.2020.113319

Ciza Hamuli, P., Sacre, P.-Y., Kanyonyo, M., Waffo Tchounga, C. A., Coic, L., mbinze, J., Ziemons, E., Hubert, P., & Marini Djang'Eing'A, R. (28 January 2020). Application of vibrationnal spectroscopy and chemometrics to access the quality of Locally produced antimalarial medicines in the Democratic Republic of Congo [Poster presentation]. Conférence Chimiométrie 2020, ULiège - Université de Liège, Belgium.

Deidda, R., Damergi, D., Coppey, F., De Bleye, C., Coic, L., Sacre, P.-Y., Hubert, P., Ziemons, E., Esseiva, P., & Veuthey, J.-L. (28 January 2020). Handheld Near Infrared spectroscopy for cannabis analysis: from the analytical problem to the chemometric solution [Paper presentation]. Chimiométrie 2020, Liège, Belgium.

Cailletaud, J., De Bleye, C., Dumont, E., Sacre, P.-Y., Gut, Y., Leblanc, N., Letellier, P., Ginot, Y.-M., Hubert, P., & Ziemons, E. (25 January 2020). Detection of low dose of piroxicam polymorph in pharmaceutical tablets by surface-enhanced Raman chemical imaging (SER-CI) and multivariate analysis. International Journal of Pharmaceutics, 574, 118913. doi:10.1016/j.ijpharm.2019.118913

Alaoui Mansouri, M., Sacre, P.-Y., Coic, L., De Bleye, C., Dumont, E., Bouklouze, A., Hubert, P., Marini Djang'Eing'A, R., & Ziemons, E. (15 January 2020). Quantitation of Active Pharmaceutical Ingredient through the Packaging Using Raman Handheld Spectrophotometers: A Comparison Study. Talanta, 207, 120306. doi:10.1016/j.talanta.2019.120306

De Bleye, C., Cailletaud, J., Dumont, E., Sacré, P.-Y., Gut, Y., Ginot, Y.-M., Hubert, P., & Ziemons, E. (11 October 2019). Application of surface-enhanced Raman chemical imaging (SER-CI) to quantification in pharmaceutical tablets. American Pharmaceutical Review, 22 (6).

Ciza Hamuli, P.* , Sacre, P.-Y.* , Waffo Tchounga, C., Coic, L., Avohou, T. H., Mbinze, J., Ngono, R., Marini Djang'Eing'A, R., Hubert, P., & Ziemons, E. (01 September 2019). Comparing the qualitative performances of handheld NIR and Raman spectrophotometers for the detection of falsified pharmaceutical products. Talanta, 202, 469-478. doi:10.1016/j.talanta.2019.04.049

Clavaud, M., Lema-Martinez, C., Roggo, Y., Bigalke, M., Guillemain, A., Hubert, P., Ziemons, E., & Allmendinger, A. (2019). Near-infrared spectroscopy to determine residual moisture in freeze-dried products: Model generation by statistical design of experiments. Journal of Pharmaceutical Sciences. doi:10.1016/j.xphs.2019.08.028

Ciza Hamuli, P., Sacre, P.-Y., Waffo Tchounga, C. A., Coic, L., Marini Djang'Eing'A, R., Hubert, P., & Ziemons, E. (14 June 2019). Identification of pharmaceutical products using Handheld NIR and Raman spectrophotometers [Paper presentation]. Journées Internationales de Recherche en Sciences de la Santé 2019, Lubumbashi, Congo - Brazzaville.

Coic, L.* , Sacre, P.-Y.* , Dispas, A., sakira, A. K., Fillet, M., Marini Djang'Eing'A, R., Hubert, P., & Ziemons, E. (01 June 2019). Comparison of hyperspectral imaging techniques for the elucidation of falsified medicines composition. Talanta, 198, 457-463. doi:10.1016/j.talanta.2019.02.032

Alaoui Mansouri, M., Sacre, P.-Y., Coic, L., De Bleye, C., Dumont, E., Bouklouze, A., Hubert, P., Marini Djang'Eing'A, R., & Ziemons, E. (20 May 2019). COMPARATIVE STUDY OF ACTIVE PHARMACEUTICAL INGREDIENT QUANTITATION THROUGH THE PACKAGING USING HANDHELD SPECTROPHOTOMETERS BASED ON CONVENTIONAL AND SPATIALLY OFFSET RAMAN SCATTERING [Paper presentation]. 20th forum of Pharmaceutical Sciences, Brussels, Belgium.

Deidda, R., Avohou, T. H., Jambo, H., Dispas, A., Orlandini, S., Hubert, P., Ziemons, E., & Hubert, C. (20 May 2019). Principles of Analytical Quality by Design for the development of quality control methods in a pharmaceutical context [Paper presentation]. 20th Forum of Pharmaceutical Sciences - BSPS, Brussels, Belgium.

Deidda, R.* , Sacre, P.-Y.* , Clavaud, M., Coic, L., Avohou, T. H., Hubert, P., & Ziemons, E. (May 2019). Vibrational spectroscopy in analysis of pharmaceuticals: Critical review of innovative portable and handheld NIR and Raman spectrophotometers. TrAC: Trends in Analytical Chemistry, 114, 251-259. doi:10.1016/j.trac.2019.02.035

De Bleye, C., Widart, J., Sacre, P.-Y., Hubert, P., & Ziemons, E. (19 December 2018). Vibra-Santé Hub [Poster presentation]. 1st CIRM Scientific Day, Liège, Belgium.

Emonts, P., Dispas, A., Ninane, C. (Other coll.), Hubert, P. (Other coll.), Servais, A.-C. (Other coll.), Ziemons, E. (Other coll.), & Fillet, M. (Other coll.). (19 December 2018). Development and optimization of a derivatization protocol for phenethylamine compounds using FITC-CE-LIF method [Poster presentation]. 1st CIRM Scientific Day, Liège, Belgium.

Castiglione, V., Sacre, P.-Y., Cavalier, E., Hubert, P., GADISSEUR, R., & Ziemons, E. (16 November 2018). Raman chemical imaging, a new tool in kidney stone structure analysis: Case-study and comparison to Fourier Transform Infrared spectroscopy [Poster presentation]. Joint Annual Meeting of the Royal Belgian Society of Laboratory Medicine and the Belgian Thyroid Club.

Cailletaud, J., De Bleye, C., Dumont, E., Sacre, P.-Y., Gut, Y., Bultel, L., Ginot, Y.-M., Hubert, P., & Ziemons, E. (01 October 2018). Towards a spray-coating method for the detection of low-dose compounds in pharmaceutical tablets using surface-enhanced Raman chemical imaging (SER-CI). Talanta, 188, 584-592. doi:10.1016/j.talanta.2018.06.037

Clavaud, M., Sacre, P.-Y., Hubert, P., & Ziemons, E. (09 September 2018). Transfer of active pharmaceutical ingredients (API) Raman library from bench top towards handheld spectrometers [Paper presentation]. International Syposium DA-PBA 2018, Leuven, Belgium.

Dumont, E., De Bleye, C., Cailletaud, J., Sacre, P.-Y., Van Lerberghe, P.-B., Rogister, B., Rance, G. A., Aylott, J. W., Hubert, P., & Ziemons, E. (15 August 2018). Development of a SERS strategy to overcome the nanoparticle stabilisation effect in serum-containing samples: Application to the quantification of dopamine in the culture medium of PC-12 cells. Talanta, 186, 8-16. doi:10.1016/j.talanta.2018.04.038

Castiglione, V., Sacre, P.-Y., CAVALIER, E., Hubert, P., GADISSEUR, R., & Ziemons, E. (03 August 2018). Raman Chemical Imaging, a new tool in kidney stone structure analysis: Case-study and comparison to Fourier Transform Infrared spectroscopy. PLoS ONE, 13 (8), 0201460. doi:10.1371/journal.pone.0201460

Nguyen, D., Dortu, F., Dispas, A., Hubert, P., Ziemons, E., & Hernandez, Y. (25 April 2018). Terahertz hyperspectral imaging of lab-prepared versus commercial paracetamol tablets and potential applications [Poster presentation]. SPIE Photonics Europe, Strasbourg, France.

Cailletaud, J., De Bleye, C., Dumont, E., Sacre, P.-Y., Netchacovitch, L., Gut, Y., Boiret, M., Ginot, Y.-M., Hubert, P., & Ziemons, E. (05 January 2018). Critical review of surface-enhanced Raman spectroscopy applications in the pharmaceutical field. Journal of Pharmaceutical and Biomedical Analysis, 147, 458-472. doi:10.1016/j.jpba.2017.06.056

Coic, L., Sacre, P.-Y., Avohou, T. H., Deidda, R., De Bleye, C., Dumont, E., Marini Djang'Eing'A, R., Hubert, P., & Ziemons, E. (2018). Recent developments of Raman spectroscopy for the qualitative analysis of falsified and substandard medicines. European Pharmaceutical Review.

Jambo, H., Dispas, A., Avohou, T. H., André, S., Hubert, C., Lebrun, P., Ziemons, E., & Hubert, P. (2018). Implementation of a generic SFC-MS method for the quality control of potentially counterfeited medicinal cannabis with synthetic cannabinoids. Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences, 1092, 332-342. doi:10.1016/j.jchromb.2018.05.049

Andri, B., Dispas, A., Klinkenberg, R., Streel, B., Marini Djang'Eing'A, R., Ziemons, E., & Hubert, P. (27 July 2017). Is supercritical fluid chromatography hyphenated to massspectrometry suitable for the quality control of vitamin D3 oilyformulations? Journal of Chromatography. A, 1515, 209-217. doi:10.1016/j.chroma.2017.07.057

Clavaud, M., Roggo, Y., Degardin, K., Sacre, P.-Y., Hubert, P., & Ziemons, E. (15 July 2017). Global regression model for moisture content determination using near-infrared spectroscopy. European Journal of Pharmaceutics and Biopharmaceutics, 119, 343-352. doi:10.1016/j.ejpb.2017.07.007

Clavaud, M., Roggo, Y., Allmendinger, A., Martinez, C., Hubert, P., & Ziemons, E. (11 June 2017). Impact of formulation and process parameters on near-infrared spectra: Application for water determination in biopharmaceuticals [Poster presentation]. 18th International Conference on Near Infrared Spectroscopy, Copenhagen, Denmark.

Sacre, P.-Y., Netchacovitch, L., Dumont, E., Cailletaud, J., De Bleye, C., Boiret, M., Hubert, P., & Ziemons, E. (2017). Raman Hyperspectral Imaging: An essential tool in the pharmaceutical field. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/211869.

Clavaud, M., Roggo, Y., Dégardin, K., Lema-Martinez, C., Hubert, P., & Ziemons, E. (2017). Online-Restwasserbestimmung. ChemieXtra: die Fachzeitschrift für die Chemie- und Laborbranche.

Marini Djang'Eing'A, R., Ziemons, E., Sacre, P.-Y., & Hubert, P. (2017). Le fléau des faux médicaments [Paper presentation]. Médicaments ou poisons, Liège, Belgium.

Sacre, P.-Y., De Bleye, C., Netchacovitch, L., Hubert, P., & Ziemons, E. (2017). Raman Hyperspectral Imaging: An essential tool in the pharmaceutical field [Paper presentation]. Live Webinar, Paris, France.

Sacre, P.-Y., Ziemons, E., Hubert, P., & Marini Djang'Eing'A, R. (Other coll.). (2016). Médicaments usage de faux. Moustique.

Baldacci-Cresp, F., Sacre, P.-Y., Twyffels, L., Mol, A., Vermeersch, M., Ziemons, E., Hubert, P., Pérez-Morga, D., El Jarizi, M., de Almeida-Engler, J., & Baucher, M. (2016). Poplar-root-knot nematode interaction: a model for perennial woody species. Molecular Plant-Microbe Interactions, 29 (7), 560-572. doi:10.1094/MPMI-01-16-0015-R

Habyalimana, V., Mbinze Kindenge, J., Kalenda Tshilombo, N., Dispas, A., Yemoa Loconon, A., Sacre, P.-Y., Widart, J., De Tullio, P., Counerotte, S., Kadima Ntokamunda, J.-L., Ziemons, E., Hubert, P., & Marini Djang'Eing'A, R. (02 December 2015). Analytical Tools and Strategic Approach to Detect Poor Quality Medicines, Identify Unknown Components, and Timely Alerts for Appropriate Measures: Case Study of Antimalarial Medicines. American Journal of Analytical Chemistry, 6, 977-994. doi:10.4236/ajac.2015.613093

Mbinze Kidenge, J.* , Sacre, P.-Y.* , Yemoa, A., Mavar Tayey Mbay, J., Habyalimana, V., Kalenda, N., Hubert, P., Marini Djang'Eing'A, R., & Ziemons, E. (10 July 2015). Development, validation and comparison of NIR and Raman methods for the identification and assay of poor-quality oral quinine drops. Journal of Pharmaceutical and Biomedical Analysis, 111, 21-27. doi:10.1016/j.jpba.2015.02.049

Ziemons, E., Chavez, P.-F., Netchacovitch, L., De Bleye, C., Sacre, P.-Y., & Hubert, P. (29 April 2015). Intérêt de la spectroscopie vibrationnelle dans le cadre de l'analyse pharmaceutique [Paper presentation]. Séminaire de l'école doctorale thématique en Sciences Pharmaceutiques, Bruxelles, Belgium.

Ziemons, E., Sacre, P.-Y., Marini Djang'Eing'A, R., & Hubert, P. (2015). Falsification des médicaments: Est-il possible d'améliorer la puissance des outils de détection ? [Paper presentation]. Liège Créative, Liège, Belgium.

Sacre, P.-Y., Netchacovitch, L., De Bleye, C., Chavez, P.-F., Servais, C., Klinkenberg, R., Streel, B., Hubert, P., & Ziemons, E. (2015). Thorough characterization of a Self-Emulsifying Drug Delivery System with Raman hyperspectral imaging: A case study. International Journal of Pharmaceutics, 484, 85-94. doi:10.1016/j.ijpharm.2015.02.052

Netchacovitch, L., De Bleye, C., Chavez, P.-F., Sacre, P.-Y., Hubert, P., & Ziemons, E. (November 2014). Raman hyperspectral imaging: a single tool to characterise pharmaceutical products. European Pharmaceutical Review, 19 (5), 8-11.

Sacre, P.-Y., Lebrun, P., Chavez, P.-F., De Bleye, C., Netchacovitch, L., Rozet, E., Klinkenberg, R., Streel, B., Hubert, P., & Ziemons, E. (2014). A new criterion to assess distributional homogeneity in hyperspectral images of solid pharmaceutical dosage forms. Analytica Chimica Acta, 818, 7-14. doi:10.1016/j.aca.2014.02.014

Chavez, P.-F., De Bleye, C., Sacre, P.-Y., Rozet, E., Hubert, P., & Ziemons, E. (February 2013). Validation methodologies of near infrared spectroscopy methods in pharmaceutical applications. European Pharmaceutical Review, 18 (1), 3-6.

Krier, F., mantanus, J., Ziemons, E., Hubert, P., & Evrard, B. (16 October 2012). Comparison of in-line active content determination of polymeric implant by near infrared spectroscopy and Raman spectroscopy [Poster presentation]. Congrés annuel de l'AAPS2012.

Ziemons, E., De Bleye, C., Chavez, P.-F., Rozet, E., Lebrun, P., & Hubert, P. (10 May 2012). Development of near infrared spectroscopic methods using desirability indexes: How to select the most appropriate calibration model [Paper presentation]. EuPAT 5 - Fith pan-European QbD & PAT Science Conference, Ghent, Belgium.

Ziemons, E., Mantanus, J., Rozet, E., Lebrun, P., Klinkerberg, R., Streel, B., Evrard, B., & Hubert, P. (March 2012). AN INNOVATIVE APPROACH TO SELECT THE PREDICTION MODEL IN THE DEVELOPMENT OF NIR SPECTROSCOPIC METHODS [Poster presentation]. AGROSTAT 2012, Paris, France.

Mantanus, J., Rozet, E., Van Butsele, K., De Bleye, C., Ceccato, A., Evrard, B., Hubert, P., & Ziemons, E. (October 2011). Silicone-based drug reservoirs manufacturing process - Critical quality attributes evaluation using NIR and Raman spectroscopy [Poster presentation]. AAPS Annual Meeting and Exposition, Washington, United States.

De Bleye, C., Mantanus, J., Rozet, E., Van Butsele, K., Marini Djang'Eing'A, R., Ceccato, A., Evrard, B., Hubert, P., & Ziemons, E. (September 2011). BUILDING THE QUALITY INTO THE POLYMERIC SOLID DOSAGE FORM MANUFACTURING LINE - CRITICAL QUALITY ATTRIBUTES EVALUATION WITH NIR AND RAMAN PAT TOOLS [Poster presentation]. Recent Development in Pharmaceutical Analysis (RDPA), Pavia, Italy.

Marini Djang'Eing'A, R., Mbinze Kindenge, J., Debrus, B., Lebrun, P., Mantanus, J., Ziemons, E., Lamalle, C., Fillet, M., Rudaz, S., & Hubert, P. (September 2011). IMPLEMENTATION OF GENERIC ANALYTICAL METHODS TO FIGHT AGAINST COUNTERFEIT MEDICINES [Paper presentation]. Recent Development in Pharmaceutical Analysis (RDPA), Pavia, Italy.

Rozet, E., Marini Djang'Eing'A, R., Lebrun, P., Ziemons, E., Boulanger, B., & Hubert, P. (September 2011). A BAYESIAN PREDICTIVE PROBABILITY CRITERION TO ASSESS ANALYTICAL METHODS VALIDITY [Poster presentation]. Recent Development in Pharmaceutical Analysis (RDPA), Pavia, Italy.

Marini Djang'Eing'A, R., Ziemons, E., & Hubert, P. (2011). Contrôle qualité. 15e Jour du Mois.

Ziemons, E., Mantanus, J., Rozet, E., Lebrun, P., Klinkenberg, R., Streel, B., Moonen, F., Evrard, B., & Hubert, P. (08 December 2010). Vibrational spectroscopy in pharmaceutical industry: From development of the most appropriate predictive model to routine implementation [Poster presentation]. BioWin Day 2010, Louvain-la-Neuve, Belgium.

Rozet, E., Lebrun, P., Boulanger, B., Ziemons, E., & Hubert, P. (02 December 2010). Evaluating analytical results reliability using a Bayesian probability criterion [Poster presentation]. Congrès Chimimétrie 2010, Paris, France.

Ziemons, E., Mantanus, J., Rozet, E., Lebrun, P., Klinkenberg, R., Streel, B., Evrard, B., Moonen, F., & Hubert, P. (02 December 2010). Use of tolerance intervals in the development of near infrared spectroscopic methods: An innovative way to select the most appropriate calibration model [Poster presentation]. Chimiométrie 2010, Paris, France.

Krier, F., Brion, M., Debrus, B., Lebrun, P., Driesen, A., Ziemons, E., Evrard, B., & Hubert, P. (15 November 2010). Optimisation and validation of a fast HPLC method for the quantification of sulindac and its related impurities [Poster presentation]. The FIP Pharmaceutical Sciences World Congress 2010 in association with the AAPS Annual Meeting & Exposition, new orléans, United States.

Mantanus, J., Ziemons, E., Streel, B., Klinkenberg, R., Evrard, B., Rantanen, J., & Hubert, P. (15 November 2010). NIR monitoring of solid and liquid forms manufacturing – Development and validation of in-line quantitative methods [Poster presentation]. FIP Pharmaceutical Sciences 2010 world congress, New Orleans, United States.

Mantanus, J., Lebrun, P., Rozet, E., Evrard, B., Hubert, P., & Ziemons, E. (14 October 2010). La spectroscopie proche infrarouge et Raman: Nouvelles armes vertes dans le contrôle de la qualité du médicament [Poster presentation]. Journée Scientifique Annuelle de la Société Royale de Chimie: Chimie Verte, Gembloux, Belgium.

Hubert, P., Ziemons, E., Mantanus, J., Lebrun, P., Boulanger, B., & Rozet, E. (October 2010). RISK MANAGMENT IN THE VALIDATION OF ANALYTICAL METHODS [Paper presentation]. CNFR 2010 Congress, Targu-Mures, Romania.

Mantanus, J., Ziemons, E., Van Butsele, K., Evrard, B., Ceccato, A., & Hubert, P. (24 September 2010). NIR AND RAMAN SPECTROSCOPY AS PAT TOOLS FOR THE MANUFACTURING OF SILICONE-BASED DRUG RESERVOIRS [Paper presentation]. Drug Analysis 2010, Anvers, Belgium.

Ziemons, E., Mantanus, J., Rozet, E., Lebrun, P., Klinkenberg, R., Streel, B., Evrard, B., & Hubert, P. (September 2010). An innovative approach to select the prediction model in the development of NIR spectroscopy methods [Poster presentation]. Drug Analysis, Antwerpen, Belgium.

Mantanus, J., Ziemons, E., Evrard, B., Van Butsele, K., Ceccato, A., & Hubert, P. (05 May 2010). NIR Real-time monitoring of a silicone-based drug reservoir crosslinking process [Poster presentation]. 4th Pan European Pat Science conference, Kuopio, Finland.

Mantanus, J., Ziemons, E., Streel, B., Klinkenberg, R., Evrard, B., Rantanen, J., & Hubert, P. (05 May 2010). NIR as a PAT tool for solid and liquid forms manufacturing - Development and validation of in-line quantitative methods [Poster presentation]. 4th Pan European Pat Science conference, Kuopio, Finland.

Ziemons, E., & Hubert, P. (2010). Activités de recherche du laboratoire de Chimie Analytique [Paper presentation]. Forum des Seniors, Liège, Belgium.

Mantanus, J., Ziemons, E., Lebrun, P., Rozet, E., Klinkenberg, R., Streel, B., & Hubert, P. (November 2009). Active content determination of non-coated pharmaceutical pellets by near infrared spectroscopy: Method development, validation and reliability evaluation [Poster presentation]. Annual Meeting and Exposition of the American Association of Pharmaceutical Scientists, Los Angeles, United States.

Marini Djang'Eing'A, R., Rozet, E., Hubert, C., Ziemons, E., & Hubert, P. (October 2009). Estimation de l’incertitude à partir de la stratégie de l’erreur totale : Application pour des méthodes internes et des méthodes normatives [Poster presentation]. 4ème journées internationales de Toxicologie, Liège, Belgium.

Mantanus, J., Ziemons, E., Lebrun, P., Rozet, E., Rudaz, S., Klinkenberg, R., Streel, B., & Hubert, P. (September 2009). Validation of a near infrared spectroscopy method for the quantitative determination of an active ingredient in non-coated pharmaceutical pellets [Poster presentation]. 13th International Meeting of Recent Developments in Pharmaceutical Analysis, Milan, Italy.

Mantanus, J., Ziemons, E., Streel, B., Klinkenberg, R., Evrard, B., Hubert, P., & Rantanen, J. (September 2009). Production line real time near infrared (NIR) monitoring [Paper presentation]. 3rd Annual Pharmaceutical Solid State Research Cluster Symposium, Copenhagen, Denmark.

Mantanus, J., Ziemons, E., Streel, B., Klinkenberg, R., Evrard, B., Hubert, P., & Rantanen, J. (August 2009). Quantitative in-line monitoring of pharmaceutical pellets active content using near infrared spectroscopy [Poster presentation]. 3rd Annual Pharmaceutical Solid State Research Cluster Symposium, Copenhagen, Denmark.

Mantanus, J., Ziemons, E., Streel, B., Klinkenberg, R., Evrard, B., Hubert, P., & Rantanen, J. (June 2009). Interfacing near infrared (NIR) spectroscopy with production line - Role of sample movement and density [Poster presentation]. Premier European Platform for Advancing Pharmaceutical Sciences, Nice, France.

Rozet, E., Boulanger, B., Rudaz, S., Marini Djang'Eing'A, R., Ziemons, E., & Hubert, P. (2009). Universal applicability of Total Error for the validation of bioanalytical methods [Paper presentation]. 4èmes JOURNEES INTERNATIONALES de toxicologie, liege, Belgium.

Rozet, E., Boulanger, B., Rudaz S, Marini Djang'Eing'A, R., Ziemons, E., & Hubert, P. (2009). Total Error for the Valildation of Bioanalytical methods. Annales de Toxicologie Analytique, 21 (S1), 35.

Ziemons, E., Bourichi, H., Mantanus, J., Lebrun, P., Bouklouze, A., Cherrah, Y., & Hubert, P. (October 2008). Analyse quantitative de mélanges binaires de deux formes cristallines du fluconazole par la spectroscopie proche infrarouge et par diffraction des rayons X: comparaison des deux méthodes [Paper presentation]. 2ème Congrès des Sciences Analytiques, Casablanca, Morocco.

Mantanus, J., Ziemons, E., Lebrun, P., Rozet, E., Klinkenberg, R., Streel, B., Evrard, B., & Hubert, P. (2008). Determination of moisture content in pharmaceutical pellets using near infrared spectroscopy: Method development and validation [Paper presentation]. PAT Workshop, Gent, Belgium.

Mantanus, J., Ziemons, E., Lebrun, P., Rozet, E., Klinkenberg, R., Streel, B., & Hubert, P. (2008). Moisture content determination of pharmaceutical pellets by near infrared spectroscopy: model selection, evaluation and validation [Poster presentation]. 11th Conference on Chemometrics in Analytical Chemistry, Montpellier, France.

Rozet, E., Dewe, W., Boulanger, B., Ziemons, E., Hubert, C., Moonen, F., & Hubert, P. (2008). Simultaneous improvement of the predictive character of the validation data and estimation of measurement uncertainty [Paper presentation]. Agrostat, Louvain-la-Neuve, Belgium.

Ziemons, E., Mantanus, J., Lebrun, P., Rozet, E., & Hubert, P. (2008). Reflexions, La Chimie Analytique Verte. (Planet'ULg, ULiège - Université de Liège). Reflexions.

Ziemons, E., Rozet, E., Lejeune, R., Angenot, L., & Hubert, P. (20 March 2007). Dosage en ligne d'une molécule d'origine naturelle dans le CO2 supercritique à l'aide d'une cellule à haute pression équipée de fibres optiques couplant un spectrophotomère IRTF à un extracteur à fluide supercritique [Poster presentation]. SEP 2007, Grenoble, France.

Hubert, C., Rozet, E., Ceccato, A., Dewé, W., Ziemons, E., Moonen, F., Michail, K., Wintersteiger, R., Streel, B., Boulanger, B., & Hubert, P. (March 2007). Validation versus routine : Evaluation de l'aspect prédictif de l'intervalle de tolérance [Poster presentation]. 7ème congrès francophone de l'AfSep sur les sciences séparatives et les couplages, Grenoble, France.

Ziemons, E. (2006). Etude en temps réel du processus d'extraction de la tagitinine C en fonction des caractéristiques physico-chimiques du CO2 supercritique à l'aide de fibres optiques couplant un spectrophotomètre IRTF à un extracteur à fluide supercritique [Doctoral thesis, ULiège - Université de Liège]. ORBi-University of Liège. https://orbi.uliege.be/handle/2268/27111

Hubert, C., Lambert, A., Ziemons, E., Hubert, P., & Lejeune, R. (May 2006). Speciation analysis of Sn(II) and Sn(IV) in stannous octoate using differential pulse polarography [Poster presentation]. Drug Analysis 2006, Namur, Belgium.

Marini Djang'Eing'A, R., Rozet, E., Ziemons, E., Chiap, P., Boulanger, B., Rudaz, S., Servais, A.-C., Fillet, M., Crommen, J., & Hubert, P. (May 2006). COMPARISON OF THREE DIFFERENT APPROACHES FOR UNCERTAINTY ESTIMATION CONSIDERING LC AND CE METHODS [Paper presentation]. A joint meeting of two distinguished series: the 8th International Symposium on Drug Analysis and the 17th International Symposium on Pharmaceutical and Biomedical Analysis, Namur, Belgium.

Ziemons, E., Barillaro, V., Rozet, E., Wandij Mbakop, N., Lejeune, R., Angenot, L., Thunus, L., & Hubert, P. (2006). Use of the accuracy profile for the validation of a direct determination of tagitinin C in Tithonia diversifolia leaves by on-line coupling of supercritical CO2 extraction to FT-IR spectroscopy by means of optical fibres [Poster presentation]. Drug Analysis, Namur, Belgium.

Ziemons, E., Lejeune, R., Angenot, L., Thunus, L., & Hubert, P. (2006). Etude en temps réel du processus d'extraction de la tagitinine C en fonction des caractéristiques physico-chimiques du CO2 supercritique à l'aide de fibres optiques couplant un spectrophotomètre IRTF à un extracteur à fluide supercritique [Poster presentation]. Forum Labo & Forum Biotech, Paris, France.

Ziemons, E., Goffin, E., Lejeune, R., Proença da Cunha, A. P., Angenot, L., & Thunus, L. (January 2005). Supercritical carbon dioxide extraction of tagitinin C from Tithonia diversifolia. Journal of Supercritical Fluids, 33 (1), 53-59. doi:10.1016/j.supflu.2004.04.001

Ziemons, E., Otte, X., Lejeune, R., Rozet, E., Thunus, L., & Hubert, P. (2005). Determination of fenofibrate, ciprofibrate and bezafibrate in mixtures by FTIR spectroscopy [Poster presentation]. 11th meeting on Recent Developments in Pharmaceutical Analysis, Rimini, Italy.

Ziemons, E., Goffin, E., Lejeune, R., Angenot, L., & Thunus, L. (06 February 2004). FT-IR measurement of tagitinin C after solvent extraction from Tithonia diversifolia. Talanta, 62 (2), 383-387. doi:10.1016/j.talanta.2003.08.007

Ziemons, E., Goffin, E., Lejeune, R., Angenot, L., & Thunus, L. (2003). Supercritical fluid extraction of tagitinin C from Tithonia diversifolia: Comparison of extraction yield and selectivity between supercritical fluid and classical methods of extraction [Paper presentation]. 6th International Symposium on Supercritical fluids, Versailles, France.

Ziemons, E., Goffin, E., Lejeune, R., Angenot, L., & Thunus, L. (2003). Comparison of extraction yield and selectivity between supercritical fluid and classical methods of tagitinin C extraction [Paper presentation]. 11th Forum of Pharmaceutical Sciences, Spa, Belgium.

Goffin, E., Frederich, M., Philippe, G., Ziemons, E., De Mol, P., Proença da Cunha, A., Tits, M., & Angenot, L. (September 2001). In vitro antiplasmodial activity of Tithonia diversifolia and identification of its active constituent: tagitinin C [Poster presentation]. Lead Compounds from Higher Plants, Lausanne, Switzerland.

Ziemons, E., Goffin, E., Angenot, L., & Thunus, L. (2001). Extraction of sesquiterpenic lactones with CO2 supercritical fluid and quantification of the extract by FTIR spectroscopy [Paper presentation]. 10th Forum of Pharmaceutical Sciences, Montréal, Canada.