摘要
采用脉冲负压处理技术,以黄瓜中敌敌畏农药残留为研究对象,探究负压强度、温度以及处理时间对黄瓜中敌敌畏农药残留脱除效果的影响,确定最佳脱除条件;利用高效液相色谱探寻黄瓜中敌敌畏农药残留的检测方法。结果表明:黄瓜敌敌畏农药脱除的最佳处理条件为:脉冲负压强度96 kPa,温度35℃,处理时间30 min;该条件下,黄瓜中的敌敌畏农药残留脱除率达到50.9%,且依然能保持较好的生理品质。脉冲负压技术可以有效的脱除黄瓜中敌敌畏农药残留,高效液相色谱法适用于黄瓜中敌敌畏农药残留的检测。
Different intensity of instantaneous vacuum,temperature and containing time which affect removal dichlorvos efficiencies were investigated in this paper.Worthwhile,the optimal condition about removal dichlorvos was discussed.The effectiveness of removal dichlorvos by reversed-phase chromatography separation（RP-HPLC） was also investigated.The results showd that removal rate of dichlorvos reached 50.9% under the optimal conditions which was 96 kPa intensity of pulse vacuum,35 ℃ lasting 30minutes.Cucumbers which exposed under the optimal conditions could still maintain good physiological qualities.The amount of residual dichlorvos could be accurately detected by high performance liquid chromatography.After all,the instantaneous vacuum was feasible to remove residual dichlorvos.
出处
《中国农业大学学报》
CAS
CSCD
北大核心
2011年第4期148-152,共5页
Journal of China Agricultural University
基金
国家"863"计划项目(2008AA100803)
中央高校基本科研业务费专项(2010JS075)
关键词
黄瓜
敌敌畏脱除
脉冲负压
高效液相色谱法
cucumber
residual dichlorvos
instantaneous vacuum
high performance lipid chromatography
