Determination of Organochloride by Solid Phase Extraction Method Using Dichloromethane as Eluent

Solid phase extraction method was applied using dichloromethane as eluent. After solvent convention and concentration, it was tested by gas chromatograph-mass spectrometer. The detection limit of the method ranged from 0.01 to 0.06μg/L, the average recovery ratio was 92.0% to 114%, the RSD was 1.3% to 9.2%. The method could meet the requirement of "GB 3838-2002 Environmental Quality Standards for Surface Water".