[Gas chromatographic isolation of chloropicrin in drinking water].

Gas chromatographic method has been developed to identify chloropicrin in the drinking water, which is based on its separation from water by statistic gas extraction and on the analysis of equilibrium vapor phase on a capillary column with electron-capture and nitrogen-phosphorus detectors connected in series. The method allows chloropicrin to be detected at the level of 5 mg/dm3 with a total measurement error of +/- 10% at a confidence probability of 0.95. The paper shows that the sensitivity of identification can be significantly increased.