饮用水源中的天然有机物（NOM）是臭氧需求的主要组成部分，但对这种相互作用的副产品知之甚少。一类潜在的臭氧氧化副产物是环氧化物，它可以通过臭氧氧化不饱和碳键形成，例如NOM中的烯烃基团。采用气相色谱法和质谱法，建立了一种检测饮用水中环氧化物的分析方法。该技术基于环氧化物和2,5-二氟苯胺之间的反应，通过色谱形成可检测的产物。根据温度和其他实验条件优化了反应条件，从而发展了衍生化技术来分离和检测饮用水中的环氧化物。 包括7个参考文献、表格、图表。

Natural organic matter (NOM) in drinking water sources is a major component of ozone demand yet very little is known about the byproducts of this interaction. One class of potential ozonation byproduct is epoxides, which can be formed by ozone oxidation of unsaturated carbon linkages, such as olefin groups present in NOM. An analytical method has been developed to detect epoxides present in drinking water by using gas chromatography and mass spectrometry. This technique is based on a reaction between the epoxide and 2,5-difluoroaniline to form a detectable product by chromatography. The reaction conditions were optimized as a function of temperature and other experimental conditions, thereby evolving a derivatization technique to isolate and detect the epoxides present in drinking water. Includes 7 references, table, figures.