Determination of Chlorinated Solvents in Industrial Water and Wastewater by DAI-GC-ECD
News May 05, 2011
A very simple and quick analytical method, based on direct aqueous injection, for determination of halogenated solvents in refinery water and wastewater, is described. There is a need to determine halogenated solvents in refinery water streams, because they may originate from several processes. There is also a need to develop methods enabling VOX to be determined in samples containing oil fractions. The method described enables simultaneous determination of 26 compounds with low detection limits (sub-μg L(-1)) and excellent precision, especially for highly halogenated solvents. The matrix effects of four types of sample were evaluated--the method seemed to be relatively insensitive to variations in matrix composition. Deuterated 1,2-dichloroethane was used as internal standard and surrogate compound in quantitative analysis; application of isotopically labelled compounds is rarely reported when non-mass spectrometric detectors are used for analysis. Analysis of real samples showed that the most frequently detected compounds were dichloromethane and 1,2-dichloroethane.
The article published online in the journal Analytical and Bioanalytical Chemistry and is free to access