抑制型电导-离子色谱法测定水中无机阴离子  

Determination of Inorganic Anions in Water by Ion Chromatography with Suppressed Conductivity Detector

作　　者：丁雪梅[1] 王红斌[1] 高路[1] 杨树科[1] 赵田甜[1] 门瑞雪[1] 杨敏[1] 

机构地区：[1]云南民族大学化学与生物技术学院,云南昆明650500

出　　处：《环境监测管理与技术》2010年第6期58-60,共3页The Administration and Technique of Environmental Monitoring

基　　金：云南省社会发展科技(应用基础研究)基金资助项目(2009CD100);云南省教育厅科研基金资助项目(09Y0260);大学生创新型实验计划基金资助项目(2010HSCX01)

摘　　要：采用抑制型电导-离子色谱法测定生活饮用水、污水和地表水中F-、Cl-、NO2-、Br-、NO3-、PO43-、SO42-等7种无机阴离子,对清洁水样过滤后直接测定,浑浊样品离心后取上清液过滤测定。F-在0.100 mg/L^1.20 mg/L范围内、其余6种阴离子在1.00 mg/L^12.0 mg/L范围内线性良好,方法检出限为0.031 mg/L^0.47 mg/L,水样平行测定的RSD为0.9%~1.8%,加标回收率为82.6%~110%。Seven inorganic anions was determined by ion chromatography with suppressed conductivity detector including F-,Cl-,NO-2,Br-,NO-3,PO3-4 and SO2-4 in drinking water,sewage and surface water.Filtered clean water samples were directly tested but samples which contained suspended solid materials should be centrifuged and filtered for the test.Results showed good linearity for F-ranging from 0.100 mg/L to 1.20 mg/L,for the other six inorganic anions ranging from 1.00 mg/L to 12.0 mg/L;detection limits of the method between 0.031 mg/L and 0.47 mg/L;sample RSD by parallel tests between 0.9% and 1.8%;and average recoveries between 82.6% and 110%.

关 键 词：无机阴离子 抑制型电导 离子色谱法 水质 

分 类 号：O657.75[理学—分析化学]