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an efficient assay for simultaneous quantification of ethyl carbamate and phthalate esters in chinese liquor by gas chromatography-mass spectrometry
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نویسنده
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zhang wenqing ,si guanru ,ye ming ,feng shoushuai ,cheng fan ,li jinglei ,mei jie ,zong shuai ,wang jiasheng ,zhou ping
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منبع
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food analytical methods - 2017 - دوره : 10 - شماره : 11 - صفحه:3487 -3495
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چکیده
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An efficient assay was developed by gas chromatography-mass spectrometry (gc-ms) for simultaneous quantifying of ethyl carbamate (ec) and phthalate esters (paes, dibutylphthalate (dbp) and di (2-ethylhexyl) phthalate (dehp)) in chinese liquor. samples were directly detected using ethyl-d5 carbamate (d5-ec) and diisoamyl phthalate (dipp) as internal standards without any pretreatment. the detection limits were 0.56, 0.70, and 1.13 μg/l for ec, dbp, and dehp, respectively. the average recoveries were 97.0–104.0, 96.9–105.0, and 85.0–124.2% for ec, dbp, and dehp with relative standard deviations of 0.5–1.3, 1.6–4.2, and 2.2–5.3%, respectively. the proposed method is suitable for routine analysis of ec and paes in liquor due to its shorter detection time and simple pretreatment. with assistance of the established method, the contents of ec, dbp, and dehp in chinese liquor during the distillation process were assayed and a higher level of ec was found in the head and tail of liquor distillation.
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کلیدواژه
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ethyl carbamate ,phthalate esters ,gas chromatography-mass spectrometry ,simultaneous quantification ,chinese liquor
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آدرس
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hefei university of technology, institute of microbiology and food, school of food science and engineering, china, research institute of jiangnan small pit brewing technology, xuanjiu group co., china, hefei university of technology, institute of microbiology and food, school of food science and engineering, china, ministry of education, jiangnan university, school of biotechnology, key laboratory of industrial biotechnology, china, research institute of jiangnan small pit brewing technology, xuanjiu group co., china, hefei university of technology, institute of microbiology and food, school of food science and engineering, china, research institute of jiangnan small pit brewing technology, xuanjiu group co., china, hefei university of technology, institute of microbiology and food, school of food science and engineering, china, research institute of jiangnan small pit brewing technology, xuanjiu group co., china, research institute of jiangnan small pit brewing technology, xuanjiu group co., china
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Authors
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