摘要
本文研究了甲基红、次磷酸钠、钯（Ⅱ）、碲（Ⅳ）之间的催化反应，建立了一种测定超痕量碲（Ⅳ）的新方法。方法检出限为１．２ｘ１０￣（－１１）ｇ／ｍＬＴｅ（Ⅳ），测定范围为０．００１～０．１μｇ／２５ｍＬＴｅ（Ⅳ），用于测定生物样品中的痕量Ｔｅ（Ⅳ），获得了满意结果。
This paper studies the catalytic effect oftrace Te(Ⅳ)in hydrocmoric acid medium onthe reaction of methyl red with sodium hy-pophosphite,A new kinetic spectropho-tometric method for the determination oftrace tellurium has been developed.The lim-it of detection is 1.2x10￣(-11)g/mL and thelinear range of determination is 0.001～0.1μg/25mLTe(Ⅳ).The method has beenapplied to the determination of trace telluri-um in living organs with satisfactory re-sults.
出处
《分析试验室》
CAS
CSCD
北大核心
1996年第1期27-30,共4页
Chinese Journal of Analysis Laboratory
关键词
光度法
碲
生物样品
Catalysis
kinetic spec-trophotometry
tellurium determination.
