离子色谱法测定偏钒酸铵中Cl^-、SO_4^(2-)  

Determination of Cl-and SO_4^(2-) in NH_4VO_3 using ion chromatography

作　　者：付冉冉[1] 陈颖娜[1] 郑洪国 叶明立 刘智龙[1] 

机构地区：[1]北仑出入境检验检疫局,浙江宁波315800 [2]Thermo Fisher公司上海实验室,上海201203

出　　处：《化学工程师》2014年第1期18-20,共3页Chemical Engineer

摘　　要：本文采用甲基磺酸溶液调整pH值,以水合肼溶液还原、沉淀去除钒离子,经onguardⅡH柱过滤后进离子色谱仪测定其中Cl-、SO42-的准确含量,并实验得出检出限,Cl-为0.012mg·L-1、SO42-为0.021mg·L-1,Cl-重现性1.66%,SO42-的重现性0.90%,加标回收率Cl-为98%~105%,SO42-为101%~103%。前处理方法及检测方法是可行的。Vanadium ion was removed by hydrazine hydrate solution, the pH value of the solution was adjust- - 2- ed by methyl sulfonate, filtered using onguard Ⅱ H column, the content of C1 and SO4 were determined by ion chromatography. Detection limit of CI- was 0.012mg·L-1 and SO4 2- was 0.021mg·L-1 ,reproducibility of C1- was 1.66% 2- 2- and SO4 was 0.90%,recovery rate of C1- was 98%-105%,S04 was 101%-103%. The method of determine was acceptable.

关 键 词：离子色谱 偏钒酸铵 氯离子 硫酸根 

分 类 号：O657.7[理学—分析化学]