2016•Science and Technology of Food IndustryRequires access

Study on the removal of dimethoate and chlorpyrifos in leek by slightly acidic electrolyzed water( SAEW)

Hui Hu, WU Tong-jiao, Yangfang Wan, Hao Jian-xiong, Haijie Liu, Enginering, Ttechnology, Nutrition Enginering

Abstract

Two typical organophosphorus pesticide,dimethoate and chlorpyrifos were selected,to pollute leeks,and the removal effect of dimethoate and chlorpyrifos using SAEW were investigated. The influence of available chlorine concentration( ACC),temperature of SAEW and treatment time on the removal rate of residual were discussed.The results showed that the removal effect by slightly acidic electrolyzed water was better than Na Cl O solution with the same indicators. It showed that with the increase of ACC,the removal rate of dimethoate and chlorpyrifos was first increased then decreased; within 5~30 min,treatment time had no significant influence on the removal effect. When temperature of SAEW was in the range of 20 to 50℃,the removal rate of dimethoate and chlorpyrifos had no significant differences among these treatments.

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Key concepts: Dimethoate, Chlorpyrifos, Chemistry, Chlorine, Pesticide, Toxicology, Organophosphate, Environmental chemistry