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《Journal of Anhui Agricultural Sciences》 2009-20
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Determination of Imazaquin Residues in Rice by Solid-Phase Extraction and High-Performance Liquid Chromatography(SPE-HPLC)

YAO Hai-bo et al (Department of Chemistry and Chemical Engineering,Binzhou University,Binzhou,Shandong 256603)  
An analytical method was built to determine imazaquin residues in rice.Imazaquin was extracted by methanol contained formic acid.pH value was adjusted to carry out liquid/liquid distribution,most matrix effect factors was removed by using BondElut Plexa PCX solid-phase extraction cartridges.The determination was taken by HPLC system equipped with ultraviolet detection.The recovery rate of this method was 83.9%-94.6%,the precision was 2.8%-3.1% and the minimum detectable quantity was 0.005 mg/kg,which can satisfy the need for determining the imazaquin residues in rice samples.
【Fund】: 滨州学院校内科研基金项目
【CateGory Index】: S481.8
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