离子色谱-电导检测法测定饮用水中13种阴离子的研究  

Ion chromatography-conductivity detection for the determination of 13 kinds of anions in drinking water

作　　者：王永根[1] 陈淑莎 王剑波[1] 沈飙 赵家平 费栋 

机构地区：[1]浙江省平湖市疾病预防控制中心,浙江平湖314200 [2]浙江省平湖市水务投资有限公司,浙江平湖314200 [3]瑞士万通中国有限公司上海公司,上海200335

出　　处：《中国卫生检验杂志》2012年第7期1495-1498,1501,共5页Chinese Journal of Health Laboratory Technology

基　　金：平湖市科技计划项目(2010-53)

摘　　要：目的:建立一种离子色谱-电导检测方法,用于同时测定饮用水中13种阴离子含量。方法:选用Metrosep A Supp 5-250阴离子分析色谱柱、结合Metrosep A Supp 1 Guard保护柱,淋洗液为3.2 mmol/LNa2CO3-1.0 mmol/L NaHCO3,流速0.7 ml/min,进样100μl。结果:在一定的浓度范围内,各待测物线性关系良好(r>0.999),检出限低(0.0003 mg/L～0.0134 mg/L),采用高、中、低三个浓度加标回收,回收率在93%～104%间。结论:该方法简便、灵敏、准确,一次进样能同时分离测定饮用水中13种阴离子,能满足我国现行的《生活饮用水卫生标准》水质检测的要求。Objective：To establish an ion chromatography-conductivity detection method for the simultaneous determination of 13 kinds of anion content in the drinking water.Methods： Metrosep A Supp 5-250 Anion analysis column and Metrosep A Supp 1 Guard column were employed with 3.2 mmol/L Na2CO3-1.0 mmol/L NaHCO3 as eluent,flow rate was 0.7 ml/min,injection was 100 μl.Results： Within a certain concentration range,all the analytes had a good linear relationship（r0.999）,low detection limit（0.0003 mg/L～0.0134 mg/L）,with high,medium and low concentrations of spiked recovery,recoveries were between 93%～104%.Conclusion： The method is simple,sensitive and accurate,it can separate 13 anions in drinking water simultaneously in one injection and meet the test requirements of current ＂Hygienic standard for drinking water＂.

关 键 词：离子色谱 电导检测 饮用水 13种阴离子 

分 类 号：O657.11[理学—分析化学]