水化电子e_(aq)^-对乙酰甲胺磷的作用  

The effect of e_(aq)^- on the degradation of acephate by ^(60)Co-γ radiation

作　　者：高慧宇[1] 刘远霞[2] 包华影[2] 赵仁邦[3] 

机构地区：[1]中国疾病预防控制中心营养与食品安全所,北京100050 [2]北京师范大学化学学院,北京100875 [3]河北农业大学食品科技学院,保定071000

出　　处：《环境化学》2015年第3期455-460,共6页Environmental Chemistry

基　　金：国家自然科学基金面上项目(20973026);河北省自然科学基金(B2012204073);河北省科技支撑项目(13273301D)资助

摘　　要：利用60Co-γ辐射降解有机磷农药乙酰甲胺磷的稀水溶液,以乙酰胆碱酯酶抑制率为指标,研究了不同吸收剂量下水化电子对乙酰甲胺磷稀水溶液辐照前后的毒性变化;并采用高效液相色谱、离子色谱、气-质联用等检测手段对降解产物进行了分析.结合溶液毒性变化和降解率、生成的无机离子浓度、降解产物结构分析等,初步推导了60Co-γ辐射降解过程中水化电子对乙酰甲胺磷的作用机理.The effect of eaq on the degradation inhibition ratio of acetyl cholinesterase （ACHE） of acephate was studied by 60Co-T irradiation. The was measured to investigate the toxicity of acephate solutions before and after irradiation. The degradation products were analyzed by HPLC, IC and GC- MS. Combining the degradation degree, the concentration of generated inorganic ions and the structure of products with the toxicity of solutions, the 60Co-y/radiation degradation route of acephate by e^was preliminarily deduced.

关 键 词：乙酰甲胺磷 辐射降解 有机磷农药 

分 类 号：X592[环境科学与工程—环境工程]