流动注射萃取火焰原子吸收光谱法测定硫酸镍电解液中微量铅  

On line Extraction Flow Injection Analysis for Determination of Trace Lead in Nickel Sulfate Electrolyte by Atomic Absorption Spectrometry

作　　者：郑永章[1,2] 伍星[1,2] 高英奇 曹小妹[1,2] 

机构地区：[1]北京有色金属研究总院 [2]湖南长沙医学高等专科学校

出　　处：《分析试验室》1997年第4期57-59,共3页Chinese Journal of Analysis Laboratory

摘　　要：本文采用流动注射在线萃取火焰原子吸收光谱法测定硫酸镍电解液中微量铅。考察了水相介质，共存离子、萃取装置、相比等因素的影响。分析含铅１．４ｍｇ／Ｌ和０．１６ｍｇ／Ｌ的试样，分析值的相对标准偏差（ｎ＝１０）分别为３．９％和１２．３％，方法检出限为０．０２４ｍｇ／Ｌ。An on line extraction flow injection method was developed for the determination of trace lead in nickel sulfate electrolyte using flame atomic absorption spectrometer as the detector.The influence of aqueous medium,coexisted ions,extraction device as well as phase ratio has been investigated.The relative standard deviations( n =10) for samples with lead concentration of 1.4mg/L and 0.16mg/L are 3.9% and 12.3% respectively.The detection limit of the method is 0.024mg/L.

关 键 词：流动注射 萃取 原子吸收光谱 铅 硫酸镍电解液 

分 类 号：O614.433[理学—无机化学] TF815.327[理学—化学]