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原子吸收法测定原镁石中痕量镉的研究
引用本文:胡晓静,欧阳昌俊,李洪仁.原子吸收法测定原镁石中痕量镉的研究[J].光谱实验室,1999,16(1):88-90.
作者姓名:胡晓静  欧阳昌俊  李洪仁
作者单位:1. 辽宁进出口商品检验局矿产中心,辽宁省大连市人民路81号,116001
2. 沈阳大学师范学院化学系,沈阳市东陵区文翠路51号,110015
摘    要:本文采用钴和样品自身消化反应产物硝酸镁作为混合基体改进剂,塞曼石墨炉原子吸收法测定原镁石中痕量镉,确定了仪器工作参数和测定条件,测定的相对标准偏差小于10%,用标准加入法测定镉的回为88-104%。

关 键 词:石墨炉原子吸收法  钴基体改进剂    原镁石
修稿时间:1998-10-30

Study of Determination of Trace Cadmium in Magnesite by Graphite Furnace Atomic Absorption Spectrometry
HU Xiao-Jing,OUYANG Chang-Jun,LI Hong-Ren.Study of Determination of Trace Cadmium in Magnesite by Graphite Furnace Atomic Absorption Spectrometry[J].Chinese Journal of Spectroscopy Laboratory,1999,16(1):88-90.
Authors:HU Xiao-Jing  OUYANG Chang-Jun  LI Hong-Ren
Abstract:This is a method for determining cadmium in magnesite by using zeeman graphite furnace atomic absorption spectrometry. Cobalt and magnesium nitrate that the major component of the sample were used as a mixed matrix modifier to eliminate the interference. The detection limit are 0.03ng/mL. The relative standard deviation was 8.3%. Recoveries of standard additions were satisfactry.
Keywords:GFAAS  Cobalt Matrix Modifier  Cadmium  Magnesite  
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