摘要
采用微波消解样品，氢化物发生原子荧光法同时测定保健品中的锗和硒。研究了仪器条件、酸度、KBH4浓度等对测定的影响，锗和硒的检出限为0．40和0．51μg/L；相对标准偏差均为2．0％；回收率为77．1％～105．2％和80．0％～108．2％，已用于保健品中锗和硒的测定。
A method for the determination of germanium and selenium in health food by hydride generation-atomic fluorescence spectrometry （HG-AFS） with microwave digestion was proposed. The influence of instrument parameters, HCl and KBH4 concentration were investigated. The detection limit of the germanium and selenium is 0.40 and 0.51μg/L; The relative standard deviations are 2.0%; The recoveries are in the rage of 77.1% - 105.2% and 80.0% ～ 108.2%, respectively. The method has been applied to the determination of germanium and selenium in health food with satisfactory results.
出处
《分析试验室》
CAS
CSCD
北大核心
2007年第3期114-117,共4页
Chinese Journal of Analysis Laboratory
关键词
锗和硒
氢化物发生
原子荧光
保健品
微波消解
Germanium and selenium
Hydride generation
Atomic fluorescence spectrometry
Health food
Microwave digestion
