本研究的目的是检验 母体和代谢物氯-s-三嗪和TCT的出现和清除 处理厂。该项目的具体目标是:开发 能够分析所有母体和代谢物氯-s-三嗪的GC/MS方法 由美国环境保护局（USEPA）包括DDA列出；分析培养基中的母体和代谢物浓度 选定区域内40个全尺寸公用设施的原水和成品水成对取样 美国各地的农业区；确定绝对浓度 原水和成品饮用水中氯-s-三嗪的比例； 然后，确定 作为治疗参数的函数，每种化合物和TCT的去除率 在工厂内部。 本研究提出了一种新的混合模式（离子交换+石墨） 建立了饮用水吸附（SPE）固相萃取（SPE）方法 浓缩亲本和代谢物，然后进行气相色谱/质谱分析 光谱分析（GC/MS）分析。该方法采用氘化内标法测定 回收和定量，并在其他地方详细描述（Jiang等人，2004年）。这个 DEA、DIA、DDA和SIM的方法检出限（MDL）为0.01ìg/L；和0.02ìg/L 用于ATR和道具。地表水中的回收率分别为94、104、103、110、108和102 分别为ATR、SIM、PROP、DEA、DIA和DDA的百分比。包括2个参考文献、图表。

The purpose of this study was to examine the occurrence and removal of parent and metabolite chloro-s-triazines, and TCT in fullscale treatment plants. The specific objectives of this project were to: develop a GC/MS method capable of analyzing all of the parent and metabolite chloro-s-triazines listed by the U.S. Environmental Protection Agency (USEPA) including DDA; analyze the parent and metabolite concentrations in both raw and finished waters in paired samples for 40 full-scale utilities in selected agricultural regions across the United States; determine the absolute concentrations and ratios of chloro-s-triazines in raw and finished drinking waters; and, determine the removals of each compound and of the TCT as a function of treatment parameters within the plant. In this study, a new mixed-mode (ion exchange + graphite adsorption) solid phase extraction (SPE) method for drinking water was developed to concentrate the parents and metabolites, followed by gas chromatography/mass spectrometry (GC/MS) analysis. This method utilizes deuterated internal standards for recovery and quantitation and is described in detail elsewhere (Jiang et al., 2004). The method detection limit (MDL) is 0.01 ìg/L for DEA, DIA, DDA and SIM; and 0.02 ìg/L for ATR and PROP. Recoveries in surface water were 94, 104, 103, 110, 108 and 102 percent for ATR, SIM, PROP, DEA, DIA, and DDA, respectively. Includes 2 references, figures.