离子色谱法测定饮用水中的溴酸盐、亚氯酸盐、氯酸盐及常规阴离子含量  

Simultaneous Determination of Bromate,Chlorite,Chlorate and Common Inorganic Anions in Drinking Water by Ion Chromatography

作　　者：杨敏[1] 谢静[1] 杨树科[1] 陈海云[1] 王红斌[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：《食品科学》2012年第12期219-222,共4页Food Science

摘　　要：研究大体积直接进样化学抑制电导-离子色谱法同时测定饮用水中溴酸盐、亚氯酸盐、氯酸盐以及其他7种常规无机阴离子的分析方法。采用IonPac AS9-HC分离柱和IonPac AG9-HC保护柱,以12mmol/L Na2CO3溶液为淋洗液,流速1.0mL/min,一次进样100μL。结果表明:该方法 18min内能检测出10种阴离子,各离子加标回收率为93.0%～103.1%;标准曲线的相关系数为0.9993～0.9999,相对标准偏差为1.07%～4.98%。该方法具有灵敏、准确、快速等优点,在优化条件下将该方法用于测定昆明市自来水和多种市售瓶装饮用水,结果较满意。An analytical method for the simultaneous determination of bromate, chlorite, chlorate and common inorganic anions in drinking water was developed using large-volume direct injection and chemically suppressed ion chromatography （IC）. An IonPac AS9-HC separation column and an IonPac AG9-HC protection column were used. The mobile phase was 12 mmol/L Na2CO3 at a flow rate of 1.0 mL/min. The injection volume was 100 t.tL. Ten anions could be detected by the method within 18 rain with average spike recovery of 93.0%- 103.1% （n = 5）. The correlation coefficients of calibration curve were 0.9993- 0.9999. This method was sensitive, accurate and rapid. It has been applied to determine Kunming tap water and a variety of commercial drinking water with satisfying results.

关 键 词：离子色谱 饮用水 溴酸盐 无机阴离子 

分 类 号：O611.5[理学—无机化学]