HG-AFS测定土壤水溶态、可交换态Se(Ⅳ)和Se(Ⅵ)  

Determination of Water Soluable and Exchangeable Se (IV) and Se (VI) in Soil by HG-AFS

作　　者：吴少尉[1] 池泉[2] 

机构地区：[1]中国地质大学研究生院,湖北武汉430074 [2]湖北民族学院化学与环境工程学院,湖北恩施445000

出　　处：《湖北民族学院学报（自然科学版）》2003年第1期52-55,共4页Journal of Hubei Minzu University(Natural Science Edition)

基　　金：湖北省教育厅重点项目 ( 99Z0 0 6)

摘　　要：硒的形态分析 (含价态 )在环境、生命科学以及食品、医药卫生方面具有重要意义 .为了了解土壤水溶态和可交换态中硒具体价态以及相关价态含量 ,通过实验优化了氢化物发生原子荧光光谱法测定条件 ,直接测定Se(Ⅳ )和定量还原后测总无机硒 ,差减法测得Se(Ⅵ )量 .对两种供试土壤的水溶态和可交换态硒存在的价态及含量进行了报道 。The speciation analysis of selenium(including valency) is significant in enviroment,biology,food,and medicine science.Through experiment ,we optimize the determination conditions of hydride generation-atomic fluoresence spectrometry,and determine directly Se(Ⅳ) and total inorganic selenium after quantitative reduction to Se(Ⅳ) .The content of Se(Ⅵ) was obtained in the way of difference. The valencies and contents of water soluble and exchangeable selenium in two kinds of soil were reported. The method is simple and feasible.

关 键 词：形态分析 土壤成分 水溶态硒 可交换态硒 HG-AFS 氢化物发生原子荧光光谱法 价态 

分 类 号：S153.61[农业科学—土壤学] S153.1[农业科学—农业基础科学]