石墨炉原子吸收光谱法测定痕量钒的研究  

Study on the Determination of TraceVanadium by Graphite Furnace Atomic Ab-sorption Spectrometry

作　　者：向立人[1] 王欣[1] 刘盛聪[1] 

机构地区：[1]四川大学化学系

出　　处：《分析试验室》1995年第4期26-29,共4页Chinese Journal of Analysis Laboratory

摘　　要：本文采用石墨炉原子吸收光谱对钒吸收线的特征，普通石墨管和热解石墨管中钒的原子化行为，灰化和原子化条件，基体效应等进行了研究，综合应用基体改进剂，光控升温和热解石墨管技术，提高了电热原子吸收测定钒的灵敏度，特征质量为２４ｐｇ／０．００４４Ａ。The atomization behavior of V(V)hasbeen studied in standard graphite tube andpyrolytic graphite tube. The sensitivity,pre-cision,linearity and memory effect for dif-ferent tubes have been compared. The ef-fects of kihnds of acids and 18 elementshave been investigated.The combined use ofmatrix modifier,pyrolytic graphite tube andoptical temperature control for the direct de-termination of trace vanadium by usinggraphite furnace atomic absorption spec-trometry results in 29 fold improvement ofsensitivity.The characteristic mass of V is24×10￣(-12)g/0.0044A.

关 键 词：钒 钢 原子吸收法 

分 类 号：O614.511[理学—无机化学] O657.31[理学—化学]