D293固相萃取分离/ICP-AES在线测定环境样品中铀
Journal of East China Institute of Technology(Natural Science)（2010）
Abstract
采用微色谱柱技术对环境样品中的铀进行分离富集,分析了影响其分离富集的条件,并以ICP-AES为检测仪器,对环境样品中铀的含量进行了准确测定,建立了D293固相萃取分离/ICP-AES在线测定环境样品中铀的方法.实验表明,pH=1.5时,铀可被树脂完全吸附,10 mL 0.9 mol/L NH4NO3-0.1 mol/L HNO3可完全解吸铀,浓缩物用ICP-AES进行测定,检出限、相对标准偏差和相对误差分别为0.05 μg/mL,0.8%~2.9%和0.4%~9.8%.方法简便、快速、准确,适合于各种环境样品中微量铀的测定.
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Key words
micro-column,uranium,environment sample,ICP-AES
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