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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
引用本文:周俊明,程向红.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[J].光谱实验室,1998,15(5):28-31.
作者姓名:周俊明  程向红
作者单位:中国地质大学武汉管理干部学院化学系,武汉市航空路15号,430030
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。

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

Determination of Trace Arsenic in Geological Samples by Flow Injection Hydride Generation-Vapor Store and Pulsed Sampling Atomic Fluorescence Speetrometry
ZHOU Junming,CHENG Xianghong.Determination of Trace Arsenic in Geological Samples by Flow Injection Hydride Generation-Vapor Store and Pulsed Sampling Atomic Fluorescence Speetrometry[J].Chinese Journal of Spectroscopy Laboratory,1998,15(5):28-31.
Authors:ZHOU Junming  CHENG Xianghong
Abstract: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.
Keywords:Flow Injection Hydride Generation  Vapor Store  Pulsed Sampling  Atomic Fluorescence Spectrometry  Arsenic  
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