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建立了高效液相法测定水产品中喹乙醇残留量的方法。通过提取方式、蒸馏条件以及离心转速等对加标回收率有影响的主要因素进行优化,当添加浓度在0.02~0.10 mg/kg时,回收率在75.5%~84.0%之间,相对标准偏差小于3.7%。从而确定了水产品中喹乙醇残留量测定的最佳测定条件。同时,通过不同干燥剂对于喹乙醇检测回收率比较,采用无水硫酸镁作为干燥剂优于其他。优化后的前处理方法适用于日常批量的水产品中喹乙醇残留量样本分析。
A method for the determination of olaquindox residues in aquatic products by HPLC was established. The main factors influencing the spiked recoveries were optimized by extraction methods, distillation conditions and centrifuge speed. The recoveries ranged from 75.5% to 84.0% at the concentration of 0.02-0.10 mg / kg, the relative standard deviations were less than 3.7%. In order to determine the optimum determination of olaquindox residues in aquatic products determination of the conditions. At the same time, the recovery rate of olaquindox by different desiccant is better than that of anhydrous magnesium sulfate as desiccant. The optimized pretreatment method is suitable for sample analysis of olaquindox residues in daily bulk aquatic products.