^(60)Co γ射线辐照五种常见渔药在水溶液中降解作用的研究  

Study on irradiation-induced-degradation of five fishery drugs in aqueous solution by ^(60)Co γ-rays

作　　者：刘斌[1,2] 熊光权[1] 熊善柏[2] 程薇[1] 陈玉霞[1] 廖涛[1] 李新[1] 林若泰[1] 

机构地区：[1]湖北省农科院农产品加工与核农技术研究所,武汉430064 [2]华中农业大学食品科学技术学院,武汉430070

出　　处：《辐射研究与辐射工艺学报》2010年第3期150-155,共6页Journal of Radiation Research and Radiation Processing

基　　金：科技部国际科技合作重点项目"淡水鱼加工及产品安全控制关键技术研究"(2007DFA31220);农业部公益性行业科研专项"核技术农业应用"(200803034)资助

摘　　要：本文采用0—10kGy的60Coγ射线对水溶液中的磺胺二甲基嘧啶、噁喹酸、氯霉素、呋喃唑酮、土霉素进行处理,并测定了环境的酸碱性、空气、温度对辐照降解率的影响。结果表明,60Coγ射线辐照处理能显著降解五种常见渔药在水中的残留,吸收剂量越大,渔药的降解率越高;初始浓度越低,越有利于渔药的去除。当吸收剂量为8kGy时,五种渔药(初始浓度100mg/L)的降解率均达到90%以上,酸碱性和空气环境对不同种类的渔药降解率影响有一定的差异,降低温度对渔药降解有明显抑制作用。The degradation of five kinds of fishery drugs in aqueous solution irradiated by 60Coγ-rays at the ab- sorbed dose of 0--10 kGy was investigated. The effects of acid/base, degassing and temperature on the degradation of fishery drugs were studied. The results show that fishery drugs can be degraded significantly with 60Coγ-rays irradiation, and the higher absorbed dose the higher degradation efficiency. The degradation percentage increases with the decrement of initial concentration of fishery drugs. More than 90% degradation of five fishery drugs has been achieved at absorbed dose of 8 kGy. The effects of acid/base and degassing environments on the degradation of fish- ery drugs are different. The lower temperature can inhibit remarkably the degradation of fishery drugs in aqueous solution.

关 键 词：Γ射线辐照 渔药 降解 

分 类 号：S859.79[农业科学—临床兽医学] TL99[农业科学—兽医学]