分析测试学报2011，Vol.30Issue(6)：661-664,4.DOI:10.3969/j.issn.1004-4957.2001.06.013
LC-AFS法对动物源性食品中硫柳汞残留量的测定
Determination of Thimerosal Residues in Foods of Animal Origin by LC -AFS Method
摘要
Abstract
A LC - AFS method was developed for the determination of thimerosal residues in foods of animal origin. The analyte in sample was extracted with the acidic and basic extraction solutions,and separated by liquid chromatography. Thimerosal was mixed with oxidizing reagent and air, then exposed to UV light, and oxidized to inorganic mercury. After hydride generation reaction, the atomized mercury could be determined by atomic fluorescence spectrometry (AFS). Sample preparation, mobile phase, oxidizing reagent and operating conditions of AFS were optimized. Under the optimal conditions, the calibration curve for thimerosal was linear over the concentration range of 020 μg/L with a correlation coefficient of 0. 999 4. The detection limit was 0. 4 μg/L. The average recoveries of thimerosal from five samples spiked at three levels of 10. 0, 20. 0, 40. 0 μg/kg were in the range of 71％ -83％ with RSDs of 1.6％ -4. 5％. The method was suitable for the determination of thimerosal residues in foods of animal origin.关键词
LC-AFS/动物源性食品/硫柳汞/残留Key words
LC - AFS/ food of animal origin/ thimerosal/ residues分类
化学化工引用本文复制引用
肖亚兵,秦德元,王伟,秦洪建,许泓..LC-AFS法对动物源性食品中硫柳汞残留量的测定[J].分析测试学报,2011,30(6):661-664,4.基金项目
国家认证认可监督管理委员会资助项目(2007B905) （2007B905）
