白菜及土壤中敌磺钠残留量的液相色谱分析

Determination of Fenaminosulf Residue in Cabbage and Soil by Liquid Chromatography

建立敌磺钠在白菜和土壤中液相残留分析方法,促进安全生产。在避光的条件下,白菜和土壤中敌磺钠经水高速匀浆提取,离心,上清液用阴离子交换固相萃取柱净化,甲醇和水(含0.04%乙酸+0.06%正丙胺)作为流动相,紫外检测器检测。该方法具有快速、准确而且灵敏度高的特点。

residue in naminosulf Establish a liquid phase residue analysis method for the determination of fenaminosulf cabbage and soil to promote safe production. Under the condition of avoid residue in cabbage and soil was extracted by high -speed homogenization light, fe- in wa ter and centrifuged, and the supernatant was purified by anion exchange solid phase extraction column, with methanol and water （ containing O. 04% acetic acid ＋ 0. 06% n - propylamine） as mobile phase, and UV detector detection. The method is fast, accurate and sensitive.