阳离子交换树脂分离-氢化物发生原子荧光光谱法测定食品中无机砷
HG-AFS Determination of Inorganic Arsenic in Food After Separation with Cation Exchange Resin
摘 要
提出了以阳离子交换树脂分离无机砷与一甲基胂和二甲基胂,用氢化物发生-原子荧光光谱法测定食品中无机砷含量.对阳离子交换柱的制备,洗脱液的pH值和流速,共存离子的干扰等分析条件做了试验并予以优化.方法的检出限(3s/k)为0.76 μg·L-1,相对标准偏差(n=12)为1.8%.该方法应用于黄瓜样品中无机砷含量的测定,加标回收率在96.3%~98.2%之间.
无机砷
阳离子交换树脂
HG-AFS
Inorganic arsenic
Cation exchange resin
Abstract
Micro-amounts of inorganic arsenic in food was separated from MMA and DMA by cation exchange resin,and determined by HG-AFS.Preparation of the cation exchange column and analytical conditions,including pH of eluent,flow rate of eluent,and interferences of the coexisting ions were studied and optimized.Detection limit (3s/k) found was 0.76 μg·L-1,and RSD (n=12) was 1.8%.The proposed method was used in the determination of inorganic arsenic in cucumber sample,giving the values of recovery in the range of 96.3%-98.2%.
中图分类号 O657.31
所属栏目 工作简报
基金项目
收稿日期 2008/3/6
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备注唐增煦(1981-),女,北京人,硕士,实习研究员,从事分析化学方面研究.
引用该论文: TANG Zeng-xu,MA Jie,ZHANG Meng,XIAO Xiang-lan,WU Guo-hua,XUE Ying. HG-AFS Determination of Inorganic Arsenic in Food After Separation with Cation Exchange Resin[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2009, 45(8): 979～981
唐增煦,马洁,张勐,肖香兰,吴国华,薛颖. 阳离子交换树脂分离-氢化物发生原子荧光光谱法测定食品中无机砷[J]. 理化检验－化学分册, 2009, 45(8): 979～981
被引情况:
【1】吴骋,俞璐,王慧,王国新,许玉宇,周利英,杨桂香,周锦帆, "食品中有害元素的富集与分离及其在一些光学及电化学分析方法中的应用",理化检验－化学分册 47, 1243-1246(2011)
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参考文献
【1】李海敏,张勇.砷的形态分析方法研究进展[J].理化检验-化学分册,2006,44(4):315-320．
【2】杨惠芬,梁春穗,董仕林,等.食品中无机砷限量卫生标准的研究[J].中国食品卫生杂志,2003,15(1):27-31．
【3】杨莉丽,康海彦,张德强,等.树脂预分离氢化物-原子荧光光谱法测定水中的As(Ⅲ)和As(Ⅴ)[J].分析试验室,2004,23(8):44-47．
【4】唐增煦,薛颖,马洁,等.应用阴离子交换树脂法进行食品中砷形态的研究[J].中国食品卫生杂志,2007,1(19):49-51．
【5】SIMON S,TRAN H,PANNIER F,et al.Simultaneous determination of twelve inorganic and organic arsenic compounds by liquid chromatography-ultraviolet irradiation-hydride generation atomic fluorescence spectrometry[J].Journal of Chromatography A,2004,1024:105-113．
【6】DIETZ E A,JR,Perez M E.Purificaton and analysis methods for methylarsonic acid and hydroxydimethylarsine oxide[J].Anal Chem,1976,48(7):1088-1092．
【2】杨惠芬,梁春穗,董仕林,等.食品中无机砷限量卫生标准的研究[J].中国食品卫生杂志,2003,15(1):27-31．
【3】杨莉丽,康海彦,张德强,等.树脂预分离氢化物-原子荧光光谱法测定水中的As(Ⅲ)和As(Ⅴ)[J].分析试验室,2004,23(8):44-47．
【4】唐增煦,薛颖,马洁,等.应用阴离子交换树脂法进行食品中砷形态的研究[J].中国食品卫生杂志,2007,1(19):49-51．
【5】SIMON S,TRAN H,PANNIER F,et al.Simultaneous determination of twelve inorganic and organic arsenic compounds by liquid chromatography-ultraviolet irradiation-hydride generation atomic fluorescence spectrometry[J].Journal of Chromatography A,2004,1024:105-113．
【6】DIETZ E A,JR,Perez M E.Purificaton and analysis methods for methylarsonic acid and hydroxydimethylarsine oxide[J].Anal Chem,1976,48(7):1088-1092．
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