不同清洗方法对蔬菜中克百威和腐霉利的去除效果研究

Study on the Removal Efficiency of Carbofuran and Procymidone in Vegetables by Different Cleaning Methods

为了比较1%小苏打溶液浸泡加冲洗、目前市面主流的电解水技术原理便携式果蔬清洗机和普通清水冲洗方法对农药残留的去除效果,本研究采用气相色谱法和高效液相色谱法分别测定经3种不同清洗方式处理后果菜和叶菜类蔬菜中克百威和腐霉利2种农药的残留量,分析并比较农药去除效果。试验结果表明,清水冲洗、1%小苏打溶液浸泡加冲洗和便携式果蔬清洗机清洗对蔬菜中2种农药的平均去除率分别是45.00%、41.34%和50.90%,3种方式均对腐霉利去除效果更好。农药残留去除效果与清洗方式、农药种类和蔬菜种类都有关,因此,在日常的生活中,需要根据蔬菜种类等情况选择合适的清洗方式,在不同清洗方式的去除效果间差异并不显著时,清水冲洗是最经济实惠的选择。

To compare the removal efficiency of pesticide residues by soaking annd rinsinig 1.0% sodium bicarbon atesolution,the current mainstream electrolytic water technology principle of portable fruit and vegetable washing machine and ordinary water rinsing method,GC and HPLC were used to determine the residues of carbofuran and procymidone in tomato and leafy vegetables after three different cleaning methods,and the removal effects were calculated and compared.The results showed that the average removal rates of two pesticides in vegetables by three cleaning methods were 45.00%,41.34% and 50.90%,respectively.The pesticides of the best removal efficiency by the 3 cleaning metholds was procymidone.The removal effects of pesticide residues were related to cleaning methods,pesticide types and vegetable types.In daily life,it is necessary to choose the appropriate cleaning method according to the type of vegetables,etc.In the case that the advantages of the cleaning method are not particularly significant,washing with water is the most economical choice.