催化分光加入标准法测定废水中痕量汞的研究  

Combination of Catalytic Spectrophotometry and Standard Addition Method for Determination of Trace Mercury(II) in Waste Water

作　　者：刘永和[1] 黄海燕[1] 

机构地区：[1]邵阳学院生物与化学工程系,湖南邵阳422000

出　　处：《分析测试技术与仪器》2007年第4期277-281,共5页Analysis and Testing Technology and Instruments

摘　　要：研究催化分光光度法测定水中痕量汞（Ⅱ）的各种干扰因素及消除方法．建立用于测定多组分共存水样中痕量汞（Ⅱ）的催化分光光度加入标准法．以催化分光光度加入标准法测定废水中痕量汞（Ⅱ），其线性范围为3．0×10^-3～8．0×10^-2mg／L，加标回收率97．79％～102．78％，相对标准偏差（RSD）为0．116％，测定结果与原子吸收光谱法相同．This study conducts systematic research into various interference factors and corresponding methods of elimination in the catalytic spectrophotometry for the determination of trace mercury（Ⅱ）. The study aims at a new method for the determination of trace mercury （Ⅱ） in waste water with multiple ingredients. The wide linear detection ranges from 3.0× 10^-3 to 8.0× 10^-2 μg/mL. The recovery is 97.79%- 102.78% and the relative standard deviation is 0. 116%. The determination result obtained is the same with that of absorption spectrometry.

关 键 词：催化分光光度 汞 干扰 误差 标准加入 空白底液 

分 类 号：O657.32[理学—分析化学]