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表面活性剂对毒死蜱在水溶液中的光解影响

Keywords: 表面活性剂,毒死蜱,光解

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Abstract:

以紫外灯(UV)、高压汞灯(HPML)为光源,研究了不同类型农用表面活性剂对水中毒死蜱光化学降解的影响。结果表明,UV照射下,SDBS低浓度添加无敏化作用,添加50mg·L-1时,毒死蜱的光敏化率为11.61%;Tween80添加1、10、50mg·L-1时,对毒死蜱的光敏化率分别为7%、24.79%、90.20%,光敏化作用与添加浓度正相关;Span20浓度为10、50mg·L-1时,光敏化率分别为33.07%、65.49%;混合型表面活性剂0201和2201添加50mg·L-1时,半衰期为1.32、1.29h。HPML照射下,农乳404、农乳603、农乳500、农乳601和0206B对毒死蜱的光解均产生了不同程度的敏化作用,其中农乳404和601敏化作用较强,添加25mg·L-1时,光解速率分别提高了1.73和2.22倍;农乳500、0206B、农乳603敏化作用相对较弱。毒死蜱溶液反应体系紫外吸收光谱表明,表面活性剂产生的光敏化作用与短波区域紫外吸收增强有关。此外,表面活性剂对毒死蜱光敏化作用受表面活性剂的类型和剂量的影响。

References

[1]  徐利,乙草胺在水中的光解,合肥:安徽农业大学,2003.
[2]  Komives C F,Lilley E,Russell A J,Biodegrsdation of pesticides in nonionic water-in -oil microemulsions of tween 85:relationship between micelle structure and activity,Biotechnology and Bioengineering,1994(10).
[3]  Baldwin W S,Graham S E,Shea D,Altered metabolic elimination of testosterone and associated toxicity following exposure of daphnia magnato nonylphenol polyethoxylate,Ecotoxicology and Environmental Safety,1998(2).
[4]  李学德.岳永德.花日茂.汤锋.操海群.吴祥为.唐俊 表面活性剂对水中百菌清光解的影响 [J].-农业环境科学学报2007(5)
[5]  Choy W K,Chu W,The modeling of trichloroethene photodegradation in Brj 35 surfactant by two-stage reaction,CHEMOSPHERE,2002.
[6]  施周,余健,袁玉梅,表面活性剂溶液中四氯联苯光降解机理研究,环境科学学报,2000(z).
[7]  边全乐,使用毒死蜱的安全性,中国农学通报,1997(6).
[8]  Auman J T,Seidler F J,Slotkin T A,Neonatal chlorpyrifos exposure targets multiple proteins governing the hepatic adenylyl eyelase signaling cascade:implications for neurotoxicity,Developmental Brcan Research,2000.
[9]  Whitney K D,Aeidler F L,Slotkin T A,Developmental neurotoxicity of chlorpyrifos:cellular mechanism,Toxicology and Applied Pharmacology,1995(1).
[10]  Smith G N,Ultraviolet light decomposition studies with dursban and 3,5,6-trichloro-2-pyridinol,Journal of Economic Entomology,1968(3).
[11]  Meikle R W,Kurihara N H,DeVries D H,Chlorpyrifos:the photodecomposition rates in dilute aqueous solution and on a surface,and the volatilization rate from a surface,Archives of Environmental Contwnination and Toxicology,1983(2).
[12]  Racke K D,Environmental fate of chlorpyrifos,R Reviews Environmental Contamination Toxicology,1992.
[13]  Kralj M B,Franko M,Trebse P,Photodegradation of organophesphorus insecticides-investigations of products and their toxicity using gas chromatography mass spectrometry and AChE-thermal lens spectrometric bioassay,CHEMOSPHERE,2007(1).
[14]  郑和辉.叶常明 乙草胺和丁草胺在土壤中的紫外光化学降解 [J].-环境化学2002(2)
[15]  王丹军.岳永德.汤锋.花日茂.操海群 7种农药和5种表面活性剂对氯苯嘧啶醇光解的影响 [J].-安徽农业大学学报2007(1)
[16]  王禹.李发生.谷庆宝.韩梅.李晓敏.李政一 十二烷基苯磺酸钠对异丙草胺光解体系的影响 [J].-环境科学研究2004(4)
[17]  岳永德.汤锋.花日茂.关伟.涂永志 混合农药及表面活性剂对毒死蜱光解影响的研究 [J].-安徽农业大学学报2000(1)
[18]  岳永德.陶庆会.汤锋.花日茂.李学德 表面活性剂对甲基对硫磷光解的影响 [J].-安徽农业大学学报2000(2)

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