利用60 Co?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60 Co?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 e-aq on the degradation of acephate was studied by 60 Co?γ irradiation. The inhibition ratio of acetyl cholinesterase ( AChE) 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 60 Co?γradiation degradation route of acephate by e-aq was preliminarily deduced.
参考文献
| [1] | 洪文英,吴燕君,王道泽,谢国雄,周航,洪奎贤.乙酰甲胺磷及其高毒代谢物甲胺磷在白菜中的残留动态[J].农业环境科学学报,2011(05):860-866. |
| [2] | Min Hang;Chen Zhongyun;Zhao Yuhua;Chen Meichi .Effects of trifluralin on soil microbial populations and the nitrogen fixation activities[J].Journal of Environmental Science and Health, Part B. Pesticides,Food Contaminants and Agricultural Wastes,2001(5):569-579. |
| [3] | Labud, V;Garcia, C;Hernandez, T .Effect of hydrocarbon pollution on the microbial properties of a sandy and a clay soil[J].Chemosphere,2007(10):1863-1871. |
| [4] | Lucia Guilhermino;M. Celeste Lopes;Arselio P. Carvalho;Amadeu M.V.M Soares .INHIBITION OF ACETYLCHOLINESTERASE ACTIVITY AS EFFECT CRITERION IN ACUTE TESTS WITH JUVENILE DAPHNIA MAGNA[J].Chemosphere,1996(4):727-738. |
| [5] | 周丽,张义喜,石年.甲胺磷与乙酰甲胺磷对乙酰胆碱酯酶毒效应的比较[J].中华劳动卫生职业病杂志,2002(06):405-408. |
| [6] | 顾颖,王雨轩,王斌,朱增银,尹大强.六种农药对乙酰胆碱酯酶活性的体外毒性效应[J].农村生态环境,2005(02):70-73. |
| [7] | GB/T5009,1999-2003.蔬菜中有机磷和氨基甲酸酯类农药残留量的快速检测[S]. |
| [8] | Bhalerao Tejomyee S;Puranik Pravin R .Biodegradation of organochlorine pesticide, endosulfan, by a fungal soil isolate, Aspergillus niger[J].International Biodeterioration & Biodegradation,2007(4):315-321. |
| [9] | 杨明伟,叶非.微生物降解农药的研究进展[J].植物保护,2010(03):26-29,57. |
| [10] | Anaerobic biodegradation of organochlorine pesticides in contaminated soil - Significance of temperature and availability[J].Chemosphere: Environmental toxicology and risk assessment,2010(1):22. |
| [11] | 高慧宇,刘远霞,包华影.氧气饱和条件下乙酰甲胺磷的60Coγ辐射降解研究[J].辐射研究与辐射工艺学报,2012(02):76-80. |
| [12] | A J斯沃罗;陈文琇;贾海顺;包华影.辐射化学导论[M].北京:原子能出版社,1985:160-161. |
| [13] | 刘士姮,汪世龙,孙晓宇,李文哲,倪亚明,王文峰,王敏,姚思德.脉冲辐解技术研究偶氮染料甲基橙水相降解的微观机理[J].化学学报,2004(08):818-822. |
| [14] | 董文博,王淑惠,姚思德,侯惠奇.水相中·OH, ·H和e-aq与2-氯酚反应机理研究[J].高等学校化学学报,2002(10):1896-1900. |
| [15] | 习海玲,韩世同,左言军,张建宏,杨雷.TiO2光催化降解乙酰甲胺磷[J].环境化学,2008(05):559-564. |
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