Reference : Rapid and sensitive solid phase extraction-large volume injection-gas chromatography ...
Scientific journals : Article
Life sciences : Food science
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/231149
Rapid and sensitive solid phase extraction-large volume injection-gas chromatography for the analysis of mineral oil saturated and aromatic hydrocarbons in cardboard and dried foods
English
Moret, S. [Department of Food Science, University of Udine, Via Sondrio 2A, 33100 Udine, Italy]
Barp, L. [Department of Food Science, University of Udine, Via Sondrio 2A, 33100 Udine, Italy]
Purcaro, Giorgia mailto [Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie des agro-biosystèmes >]
Conte, L. S. [Department of Food Science, University of Udine, Via Sondrio 2A, 33100 Udine, Italy]
2012
Journal of Chromatography. A
1243
1-5
Yes (verified by ORBi)
International
0021-9673
[en] Large volume injection (LVI) ; Mineral oil aromatic hydrocarbons (MOAH) ; Mineral oil saturated hydrocarbons (MOSH) ; Solid phase extraction (SPE)-GC-FID ; Cardboard packaging ; Coefficients of variations ; Concentration ranges ; Detector response ; Dried food ; Food samples ; Germany ; Large volume injection ; Limit of quantifications ; Powder samples ; Rapid-heating ; Saturated hydrocarbons ; Solid-phase ; Solid-phase extraction ; Solvent consumption ; Tea samples ; Aromatic hydrocarbons ; Gas chromatography ; Gas generators ; Organic compounds ; Recycling ; Silica gel ; Sugars ; Mineral oils ; Chromatography, Gas ; Food Packaging ; Food, Preserved ; Limit of Detection ; Mineral Oil ; Regression Analysis ; Sensitivity and Specificity ; Solid Phase Extraction
[en] A rapid off-line solid phase extraction-large volume injection-gas chromatography-flame ionisation detection (SPE-LVI-GC-FID) method, based on the use of silver silica gel and low solvent consumption, was developed for mineral oil saturated hydrocarbon (MOSH) and mineral oil aromatic hydrocarbon (MOAH) determination in cardboard and dried foods packaged in cardboard. The SPE method was validated using LVI with a conventional on-column injector and the retention gap technique (which allowed to inject up to 50 μL of the sample). Detector response was linear over all the concentration range tested (0.5-250 μg/mL), recoveries were practically quantitative, repeatability was good (coefficients of variation lower than 7%) and limit of quantification adequate to quantify the envisioned limit of 0.15. mg/kg proposed in Germany for MOAH analysis in food samples packaged in recycled cardboard. Rapid heating of the GC oven allowed to increase sample throughput (3-4 samples per hour) and to enhance sensitivity. The proposed method was used for MOSH and MOAH determination in selected food samples usually commercialised in cardboard packaging. The most contaminated was a tea sample (102.2 and 7.9. mg/kg of MOSH and MOAH below n-C25, respectively), followed by a rice and a sugar powder sample, all packaged in recycled cardboard. © 2012 Elsevier B.V.
Researchers ; Professionals
http://hdl.handle.net/2268/231149
10.1016/j.chroma.2012.04.040

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
26-JCA 2012 1243 1-5- MOSH&MOAH.pdfPublisher postprint350.79 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.