Determining the henry's law constants of THMS in seawater by means of purge-and-trap gas chromatography (PT-GC): The influence of seawater as sample matrix

Abstract

The influence of seawater salts as salting out agents on the purge-and-trap gas chromatography (PT-GC) determination of trihalomethanes (THMs) was studied. This is particularly important since seawater is chlorinated when used as a cooling agent in coastal nuclear power stations. The chlorination produces unwanted THMs as by-products. A PT-GC apparatus was used to determine the Henry's Law constant of each THM, with seawater as the sample matrix. 2010 © The Japan Society for Analytical Chemistry.