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

Journal of Chromatography. a
Sabrina MoretLanfranco Conte

Abstract

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, respective...Continue Reading

References

Sep 5, 2009·Journal of Agricultural and Food Chemistry·Maurus BiedermannKoni Grob

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Citations

Dec 19, 2015·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Raquel B Gómez-CocaWenceslao Moreda
Dec 12, 2012·Journal of Chromatography. a·Katell FiselierKoni Grob
Jul 10, 2013·Journal of Separation Science·Laura BarpLanfranco S Conte
Nov 2, 2016·Journal of the Science of Food and Agriculture·Vanessa GiannettiPaola Mannino
Oct 29, 2020·Journal of Separation Science·Nicola SdrigottiGiorgia Purcaro
Nov 22, 2019·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·R BevanD Mitchell

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