Publications and communications of Eric Ziemons

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.

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

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

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., 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.* , 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

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

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.

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. 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.

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.

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.

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.

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.

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.

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.