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草酸铵作稳定剂石墨炉原子吸收法直接测量土壤悬浮液中微量镉
引用本文:淦五二,隋梦,何友昭.草酸铵作稳定剂石墨炉原子吸收法直接测量土壤悬浮液中微量镉[J].光谱学与光谱分析,1999(6).
作者姓名:淦五二  隋梦  何友昭
作者单位:中国科学技术大学化学系!230026合肥
摘    要:本文研究了石墨炉原子吸收法直接测量土壤悬浮液中微量镉。比较了不同基体改进剂及背景吸收对测量的影响。并以草酸铵为稳定剂对悬浮液的稳定性进行了研究,结果表明在碱性条件下,使用0.007 m ol·L- 1 的草酸铵作稳定剂时, 土壤悬浮液比较稳定。应用固体悬浮液进样方法, 直接测定了土壤样品中的微量镉

关 键 词:石墨炉原子吸收法  悬浮液进样  草酸铵  

Determination of Cadmium in Soil Slurry Samples by GFAAS Using Ammonium Oxalate as Disperstant
Abstract:A method for the determination of trace cadmium in soil slurry samples by GFAAS was optimized.The factors that influence the performances of cadmium at different chemical modifier were investigated.The effect of background has also been studied.It is found that the slurry of soil samples was most stable with ammonium oxalate as disperstant.The results show that the determination of trace cadmium in soil slurry samples could performed.
Keywords:Graphite furnace atomic absorption spectrometry    Slurry sampling    Ammonium oxalate    Cadmium  
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