Abstract
A focused microwave-assisted extraction (FMAE) was optimized and coupled to gas chromatography–mass spectrometry for the determination of organochlorine pesticides in soil samples. According to the result, the combination of 20 min extraction time at 48 °C and a mixture of 1+1 of n-hexane-acetone as extraction solvent is the best conditions. The recovery values is 72.8%～96.4% in the above conditions. The relative standard deviation was 4.39%~13.18%. We have good recovery values when spiked 20ng, 40ng and 60ng standard into 5.00g soil sample.
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