This paper described a simplified quick, easy, cheap, effective, rugged and safe (QuEChERS) approach for determination of pyrazosulfuron-ethyl (PE) from soil samples by high performance liquid chromatography/ultraviolet (HPLC/UV) detector. Optimized results were obtained dispersing soil in water, followed by the addition of 1% acetic acid (HOAc) in acetonitrile (MeCN), anhydrous magnesium sulfate (MgSO4) and sodium acetate tri-hydrate (NaOAc·3H2O), which was a modification of QuEChERS method without primary and secondary amine (PSA) and C18 sorbent. The results showed the recovery ranged from 70.8% to 99.0% and 83.5% to 86.4% with the relative standard deviations of 2.1% to 7.9% and 7.0% to 10.0% in Changsha and Nanning soil samples, respectively. The limit of detection (LOD) of the method was 0.05 mg/Kg. The limit of quantification (LOQ) was 0.1 mg/Kg.
XIAOMAO ZHOU ,DONGQIANG ZENG ,YANHUI WANG ,HAI TIAN ,LIANYANG BAI ,HUIHUA TAN ,LIANGWEI DU ,
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