Study on Residue Analysis Method of Pendimethalin in Rabdosia lophanthoides Hara and Soil
A method has been developed for the determination of pendimethalin by gas chromatography with an electrical conductivity detector(GC-ECD).The results showed that the limit of detection of pendimethalin was 0.1 ng,meanwhile,the minimum detectable concentration was 0.01 mg/kg in both Rabdosia lophanthoides Hara and soil.The fortified recoveries of pendimethalin were 88.53 %-90.45 % and 93.94 %-96.23 % in Rabdosia lophanthoides Hara and soil,with relative standard deviations(RSDs) of 1.33%-2.76% and 4.67%-4.80% respectively.There was a good linear relationship in the range of 0.01-2.0 mg/L for pendimethalin.