<報文>揮発性有機汚染物質のGC法による水質定量分析

概要

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Since the Offensive Odor Control Law became effective, the evaluation of volatile organic pollutants in water has come into question. As a technique to solve this, "Vacuum Exposure Method" was employed. The method is as follows : 200ml sample water is put into previously vacuumed 1l pyrex glass bottle, that is connected with another vacuumed bottle. After it's left in water bath at 70℃ for 3 hours, the sample gas, volatiled into the second bottle, is condensed and analyzed by GC. In this process, the Henry,s Law is recognized to be valid from 0.1 to 1000 ppb or more of sample concentration in water. According to this principle, the micro analysis of environmental sample, such as water supply, sewage and waste water, became possible. For example, chloroethylene, methanol, acetone, 1,2-dichloroethane, perchloroethylene, bromodichloroethane, etc, were detected by GC-MS and quantitatively analyzed by FID GC.
横浜国立大学の論文