流动注射氢化物发生-蒸气贮存脉冲进样原子荧光法测定地质样品中的痕量砷  

Determination of Trace Arsenic in Geological Samples by Flow Injection Hydride Generation Vapor Store and Pulsed Sampling Atomic Fluorescence Speetrometry

作　　者：周俊明[1] 程向红[1] 

机构地区：[1]中国地质大学武汉管理干部学院化学系

出　　处：《光谱实验室》1998年第5期28-31,共4页Chinese Journal of Spectroscopy Laboratory

摘　　要：本文研究了流动注射氢化物发生－蒸气贮存脉冲进样原子荧光法测定地质样品中痕量砷的方法。砷的灵敏度提高１７．６倍，精密度（ＲＳＤ）为２．１％，检出限为０．３２ｎｇ／ｍＬ。用于地质标准样的测定，结果满意。A method for the determination of trace arsenic in geological samples by flow injection hydride generation vapor store and pulsed sampling atomic fluorescence spectrometry has been developed. The performances of two kinds of vapor store system have been compared with.The analytical sensitivity of arsenic has incrested by 1760 percent,The detection limit is 0.32ng/mL and relative standard deviation (RSD)2.1%.Analytical results of geological stsndard reference materials are satisfactory.

关 键 词：流动注射氢化物发生 蒸气贮存 脉冲进样 原子荧光 砷 地质样品 测定 痕量分析 

分 类 号：P575.4[天文地球—矿物学] P585.3[天文地球—地质学]