Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri, USA.
Water Environ Res. 2012 Mar;84(3):202-8. doi: 10.2175/106143012x13280358613381.
The occurrence and formation of chlorinated and brominated trihalomethanes (THMs) were studied in artificial saltwater and natural seawater marine aquaria as well as in groundwater and surface waters. A new headspace solid-phase microextraction method was used, which included gas chromatography-mass spectrometry and provided method detection limits of less than 0.1 microg/L, with a signal-to-noise ratio of 3 to 5. The results showed that disinfection by using either chlorine or ozone caused a significant formation of THMs in situ. Speciation of the THMs was a strong function of the water matrix, with initial bromide concentrations playing a pivotal role. These results provide a tool for understanding and monitoring the formation of key disinfection byproducts in marine aquaria that may cause respiratory, eye irritation, or other health concerns.
氯和溴代三卤甲烷（THMs）的产生和形成在人工盐水和天然海水水族箱以及地下水和地表水等环境中进行了研究。采用了一种新的顶空固相微萃取方法，结合气相色谱-质谱联用技术，检测限低于 0.1μg/L，信噪比为 3 到 5。结果表明，使用氯或臭氧进行消毒会导致原位产生大量 THMs。THMs 的形态是水基质的一个重要功能，初始溴化物浓度起着关键作用。这些结果为理解和监测海洋水族馆中关键消毒副产物的形成提供了一种工具，这些副产物可能会导致呼吸、眼睛刺激或其他健康问题。
