离子色谱-质谱联用法在东莞饮用水高氯酸盐污染调查中的应用  

Application of Ion Chromatography-mass Spectrometry in the Perchlorate Pollution Investigation in the drinking water in Dongguan

作　　者：李月欢[1] 杨敏[2] 徐淑暖[1] 黄丽[1] 刘志权[1] 郑惠华[1] 

机构地区：[1]广东省东莞市疾病预防控制中心,东莞523000 [2]广东省深圳市龙岗区疾病预防控制中心,深圳518172

出　　处：《中国卫生检验杂志》2013年第5期1091-1093,共3页Chinese Journal of Health Laboratory Technology

基　　金：东莞市科技计划医疗卫生类科研项目(20091051504451)

摘　　要：目的:采用离子色谱-质谱联用技术分析东莞市饮用水中高氯酸盐含量,以评价东莞市饮水中高氯酸盐的污染状况。方法:采用20 mmol/L KOH淋洗液,以高容量、强亲水性IonPac AS20分离柱分离,选择质荷比为99、101的特征离子进行单极质谱检测,对东莞市市级及镇区各水厂水源水、出厂水及东莞市内销售的瓶装水的高氯酸盐含量进行检测。结果:高氯酸盐(m/z99)在0.1μg/L～25.0μg/L范围内,方法的线性范围、精密度和回收率均符合定量要求。东莞市部分地区的水源水和饮用水中的高氯酸盐检出,但含量均低于10.42μg/L。结论:东莞市饮用水中存在高氯酸盐污染问题。Objective： Ion chromatography coupled with mass spectrometry is adopted to determine perchlorate in drinking water to investigate the pollution situation of perchlorate in drinking water in Dongguan.Methods： After separated by a high capacity,strong hydrophilic IonPac AS20 column and 20mmol/L KOH leaching lotion,the perchlorate in the source water,the finished water from the Dongguan municipal and township waterworks,and bottled water sold in Dongguan was determined by a monopole mass spectrometer detection with mass charge ratio 99、101.Results： The linearity,precision and recovery of the Perchlorate determination were in line with the quantitative requirements of the test within the range of 0.1～25.0 μg/L.Perchlorate was detected in source water and drinking water in some regions of Dongguan city,but all the results were less than 10.42 μg/L.Conclusion： Results suggest that there is perchlorate pollution problem in the drinking water in Dongguan.

关 键 词：东莞市高氯酸盐 离子色谱-质谱联用 饮用水 

分 类 号：O657.63[理学—分析化学]