Geme Gija, Brown Michael A, Simone Paul, Emmert Gary L
Department of Chemistry, The University of Memphis, Memphis, TN 38152, USA.
Water Res. 2005 Oct;39(16):3827-36. doi: 10.1016/j.watres.2005.07.015.
A capillary membrane sampling-flow injection analysis method is presented for selectively measuring the concentrations of total trihalomethanes (THMs) and total haloacetic acids (HAAs) in drinking water. The method is based on the reaction between nicotinamide and THM or HAA species to yield a fluorescent product. Two configurations are presented, one selective for total THMs and another selective for total HAAs. The construction of a capillary membrane sampler is described, and the results of method detection limit, accuracy and precision studies are reported for each method. Interference, selectivity and linearity studies are reported as well as the effect of temperature and ionic strength changes. Drinking water samples were analyzed by each proposed method and the results were compared to USEPA methods 502.2 and 552.3.
本文提出了一种毛细管膜采样-流动注射分析方法，用于选择性测量饮用水中总三卤甲烷（THMs）和总卤乙酸（HAAs）的浓度。该方法基于烟酰胺与THM或HAA物种之间的反应生成荧光产物。文中介绍了两种配置，一种对总THMs具有选择性，另一种对总HAAs具有选择性。描述了毛细管膜采样器的构造，并报告了每种方法的方法检测限、准确度和精密度研究结果。还报告了干扰、选择性和线性研究以及温度和离子强度变化的影响。采用每种提议的方法对饮用水样品进行分析，并将结果与美国环境保护局（USEPA）方法502.2和552.3进行比较。
