固体直接进样石墨炉原子吸收法测定环境土壤中铊元素  

Solid direct injection determination of thallium in the soil by graphite furnace atomic absorption spectrometer

作　　者：徐子优[1] 杨柳[1] 陈维[1] 陆皓昀 刘兆滢 徐湘博[1] 

机构地区：[1]北京市环境保护监测中心,北京100048

出　　处：《分析仪器》2015年第3期10-14,共5页Analytical Instrumentation

摘　　要：固体直接进样是近年来石墨炉原子吸收分析领域发展较快的技术,它取代了繁冗的对固体样品的前处理,避免了样品的污染和损失,也保护了操作人员的身体健康。采用固体直接进样石墨炉原子吸收光谱仪,结合使用持久化学改进剂对环境土壤样品中Tl元素进行测定,结果表明,方法检出限:0.05ng,定量测定下限:0.167ng、准确度≤0.05、精密度≤10%,均满足环境土壤测试方法的要求。The solid direct injection by graphite furnace atomic absorption has been rapidly developed in the field of analysis techniques recently ,w hich can replace the burdensome pre‐treatment of the solid sam‐ples to avoid sample contamination and loss ,and also to protect the health of the operating personnel .In this paper ,we use solid direct injection graphite furnace atomic absorption spectrometer combined with the persistent chemical modifier measuring Tl elements in the environment of soil samples .The results show that the detection limit is 0.05ng ,the quantitative determination of the lower limit is 0.167ng ,accuracy ≤0.05 ,precision≤10% ,which can meet the requirements of environmental soil test method .

关 键 词：固体进样 石墨炉原子吸收 土壤铊元素 

分 类 号：O657.31[理学—分析化学]