| 气相色谱-质谱法测定食品中2,4-滴丁酸的残留量 |
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| 引用本文： | 唐食明,冯家望,吴洁珊,刘李登,余以刚.气相色谱-质谱法测定食品中2,4-滴丁酸的残留量[J].现代食品科技,2011,27(11):1410-1413,1418. |
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| 作者姓名： | 唐食明 冯家望 吴洁珊 刘李登 余以刚 |
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| 作者单位： | 1. 珠海出入境检验检疫局技术中心,广东珠海,519015
2. 华南理工大学轻工与食品学院,广东广州51 0640 |
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| 摘 要： | 建立了检测8种动物源性和植物源性食品中2,4-滴丁酸(2,4-Dichlorophenoxybutyric acid,2,4-DB)残留量的气相色谱-质谱法.试样经乙腈-水提取,Oasis MAX阴离子交换小柱净化,经双(三甲基硅烷基)三氟乙酰胺衍生化,气相色谱质谱法检测,外标法定量.方法中2,4-DB在0.01μg/...
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| 关 键 词： | 气相色谱-质谱法 2 4-滴丁酸 衍生化 固相萃取 食品 |
Determination of 2,4-Dichlorophenoxybutyric Acid Residue in Foods using Gas Chromatography-Mass Spectrometry |
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| TANG Shi-ming,FENG Jia-wang,WU Jie-shan,LIU Li-deng.Determination of 2,4-Dichlorophenoxybutyric Acid Residue in Foods using Gas Chromatography-Mass Spectrometry[J].Modern Food Science & Technology,2011,27(11):1410-1413,1418. |
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| Authors: | TANG Shi-ming FENG Jia-wang WU Jie-shan LIU Li-deng |
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| Affiliation: | TANG Shi-ming,FENG Jia-wang,WU Jie-shan,LIU Li-deng(Zhuhai Entry-Exit Inspection & Quarantine Bureau,Zhuhai 519015,China) |
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| Abstract: | A method for determination of 2,4-Dichlorophenoxybutyric acid by gas chromatography-mass spectrometry(GC-MS) was developed.The sample was extracted with acetonitrile-water,purified by Oasis MAX column,derivatizated by bis(trimethylsilyl) trifluoroacetamide,and analyzed by GC-MS,quantified by external standard method.The linear relationships was fine(r>0.99) with a linear range from 0.01 to 5.0 μg/mL.The mean recovery were 73%~98.3% when 2,4-DB was added at levels of 0.1 mg/kg,0.2 mg/kg,1.0 mg/kg,the residual standard deviation between the sample determinations was between 2.8%~5.8%.The detection limit of the residues was 0.1 mg/kg which meet the international determination request of 2,4-Dichlorophenoxybutyric acid residues. |
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| Keywords: | gas chromatography-mass spectrometry 2 4-Dichlorophenoxybutyric acid derivatization solid phase extraction foods |
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