银氢柱除氯-液质联用法测定自来水中9种卤乙酸  

Using OnGyardⅡAg/H Cartridges to Remove Chlorine in Tap Water for Nine Haloacetic Acids Analysis by UPLC-MS/MS

作　　者：冯月超[1] 贾丽[1] 冯海静[1] 王颖[1] 刘喆[1] 曹沅[1] 范筱京[1] FENG Yue-chao JIA Li FENG Hai-jing WANG Ying LIU Zhe CAO Yuan FAN Xiao-jing(Beijing Engineering Research Center of Food Safety Analysis, Beijing Centre for Physical and Chemical Analysis, Beijing 100089, China)

机构地区：[1]北京市理化分析测试中心北京市食品安全分析测试工程技术研究中心,北京100089

出　　处：《中国给水排水》2017年第4期96-99,共4页China Water & Wastewater

基　　金：北京科学技术研究院青年骨干计划项目

摘　　要：建立了自来水中9种痕量卤乙酸的超高效液相色谱串联质谱测定方法。自来水水样过银氢柱后用超高效液相色谱串联质谱测定,采用CSH氟苯基柱,流动相为含0.02%乙酸的水和乙腈,采用多反应监测(MRM)模式测定,电喷雾离子源(ESI),负离子扫描。结果表明,9种卤乙酸标准曲线线性相关系数(R^2)均≥0.991,加标浓度分别为5、10、100、200μg/L时,9种卤乙酸的回收率在61.0%~118.3%(n=4),测定结果的RSD(n=4)均小于16%,检出限范围为0.005~0.14μg/L。A simple method to analyze nine haloacetic acids （HAAs） in tap water by UPLC-MS/ MS was developed. Tap water was passed through the OnGyard Ⅱ Ag/H cartridges before analysis. HAAS were separated by ACQUITY CSH fluoro phenyl column, using 0.02% acetic acid in water and acetonitrile as the mobile phase, and detected by negative electrospray ionization-tandem mass spectrometry, in multiple reaction monitoring （MRM） mode. The results showed that the correlation coefficients were ≥ 0. 991, the recoveries of nine target compounds in spiked tap water samples were 61.0% to 118.3% when the standard addition concentrations were 5 μg/L, 10 μg/L, 100 txg/L and 200 μg/L, the relative standard deviations （RSD, n = 4） were lower than 16%. The limits of detection were generally between 0. 005 to 0.14 μg/L.

关 键 词：自来水 超高效液相色谱-串联质谱 卤乙酸 

分 类 号：TU991.2[建筑科学—市政工程]