1-(4-硝基苯基)-3-(4-安替吡啉基)-三氮烯分光光度法测定痕量银  

Spectrophotometric Determination of Trace Silver with 1-(4-Nitrophenyl)-3-(4-antipyrineyl)-triazene as Color Reagent

作　　者：龙跃[1] 李杰[1] 王超[1] 

机构地区：[1]郑州大学化学系,河南郑州450001

出　　处：《郑州大学学报（理学版）》2010年第4期80-82,共3页Journal of Zhengzhou University:Natural Science Edition

基　　金：河南省科技攻关资助项目;编号0624420031

摘　　要：在新三氮烯试剂1-(4-硝基苯基)-3-(4-安替吡啉基)-三氮烯与银配位反应的基础上,建立了更灵敏和选择性更好的测定银离子的分光光度方法.结果表明,反应摩尔吸光系数为1.26×105L/(mol.cm),最大吸收波长为530 nm,银量在0～460μg/L范围内符合比尔定律.对显影废液中的痕量银离子进行测定,结果令人满意.1-（4-Nitrophenyl）-3-（4-antipyrineyl）-triazene（NPAPT） has been synthesized. A new spectrophotometric method for the determination of silver（I）, which is more sensitive and selec- tive,is developed based on the color reaction between NPAPT and silver（I）. Its apparent molar absorptivity is 1.26×10^5L/（mol·cm）. The maximum absorption of the complex is at 530 nm, and Beer＇s law is obeyed for 0 to 460 μg/L Ag. The method has been employed to determine the trace amounts of silver（I） in developer waste with satisfactory results.

关 键 词：新三氮烯试剂 银 表面活性剂 

分 类 号：O657.32[理学—分析化学]