高压消解—氢化物发生—原子荧光光谱法测定植物样品中的砷、锑

J4 ›› 2008, Vol. 16 ›› Issue (6): 39-41.

高压消解—氢化物发生—原子荧光光谱法测定植物样品中的砷、锑

李玄辉,陈占生

武警黄金地质研究所,河北廊坊 065000

收稿日期:2008-09-11 修回日期:2008-09-25 出版日期:2008-12-23 发布日期:2011-07-06
作者简介:李玄辉(1981-) ,男,助理工程师,主要从事岩矿分析测试工作.

Determ ina tion of Arsen ic and Antimony in the Plant Sample by Hydr ide Generation Atom ic Fluorescence Spectrometry with Pressurized Digestion

LIXuanhui, CHEN Zhansheng

Gold Geology Institute of CAPF, Langfang　 065000, Hebei, China

Received:2008-09-11 Revised:2008-09-25 Online:2008-12-23 Published:2011-07-06

摘要/Abstract

摘要：

采用断续流动进样氢化物发生—原子荧光光谱法测定植物样品中砷、锑的含量,分析测定准确性的影响因素,选择合适的仪器工作条件、还原剂浓度、介质和载流酸度等;在选定的测定条件下,砷、锑的检出限分别为0. 05μg/L和0. 06μg/L,精密度为0. 4%和0. 5% ,砷、锑的回收率分别在98%～102%和96% ～104%之间。

关键词: 高压消解, 断续流动, 氢化物发生, 原子荧光光谱法, 植物样品, 砷、锑

Abstract:

The content of arsenic and antimony in the p lant samp le are determined by hydride generation atomic fluo escence spectrometry with step2flow injection technology. This paper analyzes influencing factors of determination accuracy, then choosing p roperworking conditions of instrument, reductant concentration, acidity of samp le solution andcarrier liquid. Under the op timal condition, the detection limits of arsenic and antimony are 0. 05 and 0. 06 , p recisionare 0. 4% and 0. 5% , the recoveries of arsenic and antimony are in the ranges of 98%～102% and 96%～104%.

Key words: Pressurized digestion, Intermittent flow, Hydride generation, Atomic fluorescence spectrometry, Plant sample, Arsenic and antimony

中图分类号:

O613. 63

李玄辉,陈占生. 高压消解—氢化物发生—原子荧光光谱法测定植物样品中的砷、锑[J]. J4, 2008, 16(6): 39-41.

L IXuanhui, CHEN Zhansheng. Determ ina tion of Arsen ic and Antimony in the Plant Sample by Hydr ide Generation Atom ic Fluorescence Spectrometry with Pressurized Digestion[J]. J4, 2008, 16(6): 39-41.

参考文献

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