石墨炉原子吸收光谱法测定土壤中痕量铋  被引量:7

Determination of Trace Bismuth in Soil by Graphite Furnace Atomic Absorption Spectrometry

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作  者:张奇磊 

机构地区:[1]常州市环境监测中心,江苏常州213001

出  处:《环境科学导刊》2014年第1期94-95,共2页Environmental Science Survey

摘  要:建立了微波消解土壤、石墨炉原子吸收法测定土壤中痕量铋的方法。采用磷酸二氢铵作为基体改进剂,热解涂层石墨管,塞曼扣背景。此方法对测定土壤中铋的灵敏度、准确度都有很大的提高。方法的最低检出浓度为0.02μg/g,加标回收率为94.5%~103.8%,能够满足环境监测分析的要求。The method for determination of trace Bismuth in soil by microwave digestion soil and graphite furnace a-tomic absorption spectrometry was established.The two ammonium hydrogen phosphate as matrix modifier,pyrolyt-ic coated graphite tube and Zeeman background correction were used.The sensitivity and accuracy of this method in the determination of bismuth were greatly improved.The minimum detectable concentration was 0.02 μg/g,and the recovery was 94.5% ~103.8%.It can meet the requirements of environmental monitoring and analysis.

关 键 词: 土壤 测定 微波消解 石墨炉原子吸收光谱法 

分 类 号:X83[环境科学与工程—环境工程]

 

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