2005•Zhongguo youzhiRequires access
Adulteration detection method on edible oils by microwave-assisted derivatization and GC-MS coupled with calibration transformation matrix
HE Xiao-qing
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Abstract
A adulteration detection method on edible oils by microwave-assisted derivatization and GC-MS coupled with calibration transformation matrix was developed. The optimum conditions for micro-assisted derivatization were studied in details. The calibration model was verified on 40 samples containing known content of peanut oil, palm oil, rapeseed oil,sesame oil and cottonseed oil. The average deviations of all samples were less than 5%. Eight real samples on the market were detected by this method. Three were identified to be adulterated. The results were satisfied. The method is rapid, accurate and solvent-saving.