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投稿时间：2019-02-18
投稿时间：2019-02-18
中文摘要: 建立一种同时测定动物源性食品中阿散酸、洛克沙砷、硝苯砷酸3 种有机砷的液相色谱-氢化物发生-原子荧光光谱法（liquid chromatography hydrodide atomic flurescence spetrometry，LC-AFS）。研究液相色谱和原子荧光光谱条件并对提取剂进行优化。在0～120 μg/L 范围内阿散酸、洛克沙砷、硝苯砷酸的线性关系良好，线性相关系数均大于0.999；阿散酸、洛克沙砷、硝苯砷酸检测低限分别为0.1、0.2、0.2 mg/kg。6 种市售样品中3 个添加水平的平均回收率为阿散酸81.0%～102.5%，洛克沙砷80.0%～104.9%，硝苯砷酸81.0%～101.8%；相应的相对标准偏差（relative standard deviation，RSD）分别为1.61%～6.95%、1.32%～7.52%、0.97%～8.12%。
Abstract:A method for simultaneous determination of arsanilic，roxarsone and nitarsone residues in foods of animal origin was developed by liquid chromatography hydrodide atomic flurescence spectrometry（LC-AFS）.The operating conditions of high performance liquid chromatography hydrodide atomic flurescence spectrometry（HPLC-AFS）and the concentration of extraction solvent were optimized.Under the optimal conditions，the calibration curves for arsanilic（ASA），roxarsone（ROX）and nitarsone（NIT）were linear over the concentration ranges of 0-120 μg/L with the correlation coefficients were greater than 0.999.The detection limits of ASA，ROX and NIT were 0.1，0.2，0.2 mg/kg，respectively.The average recoveries of ASA，ROX and NIT from six samples spiked at three levels were range of 81.0%-102.5%，80.0%-104.9%and 81.0%-101.8%，respectively and their corresponding RSDs were 1.61%-6.95%、1.32%-7.52%and 0.97%-8.12%，respectively.
keywords: liquid chromatography hydrodide atomic flurescence spetrometry food of animal origin arsanilic（ASA） nitarsone（NIT） roxarsone（ROX） residues
文章编号：201923033 中图分类号： 文献标志码：
基金项目:海关总署科技计划项目（2017IK093）
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