Rapid determination of dimethyl sulfoxide in soil and solid waste by headspace-GC/MS
In this paper,a method for the determination of dimethyl sulfoxide in soil and solid waste was developed for solid samples by eliminating the interference of moisture with dimethyl sulfoxide by anhydrous sodium sulfate and using headspace-GC/MS..The results showed that this method had good peak shape and high sensitivity.The linear correlation coefficient was larger than 0.999 and the detection limit was 0.02mg·kg-1.The average recoveries of different concentrations of different soil samples were between 96.0%and 112%,and the relative standard deviations were between 0.8%and 14.9%,which was suitable for all kinds of soil samples.The method has the advantages of simple pre-treatment,high detection sensitivity,which can meet the detection requirements of dimethyl sulfoxide for soil and solid waste samples.
soilsolid wastedimethyl sulfoxideheadspacegas chromatography mass spectrometry
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NSTL
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