对乙酰偶氮胂分光光度法测定环境样品中微量镍  

Spectrophotometric determination of trace nickel in environmental samples by p-acetyl arsenazo

作　　者：罗川南[1] 杨勇[2] 周长利[1] 李颖 

机构地区：[1]山东建筑材料工业学院应用化学系,济南250022 [2]济南大学化学系,济南250002

出　　处：《卫生研究》2000年第2期118-120,共3页Journal of Hygiene Research

摘　　要：研究了对乙酰偶氮胂与镍离子的显色反应及分光光度法测定镍的条件。在磷酸盐缓冲溶液中,配合物的最大吸收波长为640nm,表观摩尔吸光系数ε640=6.03×104L.mol-1.cm-1,镍的含量在0～0.8mg/L范围内符合比尔定律。A new spectrophotometric method for the determination of micro nickel p acetyl arsenazo was studied. The maximum absorption of the Ni p acetyl arsenazo complex was observed at 640nm with the molar absorptivity of 6 03×10 4L·ml -1 ·cm -1 . The nickel content within 0～0 8mg/L followed the Beer′s Law.

关 键 词：镍 对乙酰基偶氮胂 分光光度法 

分 类 号：R994.6[医药卫生—毒理学] X830.2[医药卫生—药学]