Determination of methyl parathion in surface water by solid phase extraction and gas chromatography
A method for determination of methyl parathion in surface water by solid phase extraction and gas chromatography has been established. The experimental results show that Parathion-methyl has a good linear relationship in the range of 0. 00 ~ 60.0 μg/L. The detection limit is 0. 05 ug/L and the relative standard deviation of the 7 times measurement results is less than 2%.The recovery rate of the method is 94. 9% to 103. 7%. The method is simple and rapid, with less organic reagents, low detection limit, reproducibility and recovery rate, which can meet the analysis requirements of trace Parathion-methyl in surface water.