Fenton羟自由基反应体系的修正  

Correction of Fenton Hydroxy Radical Reaction System

作　　者：樊琛[1] 李燕[1] 曾庆华[1] 王会[1] 陆长民[1] 郑焕芹[1] 

机构地区：[1]聊城大学农学院,山东聊城252059

出　　处：《湖北农业科学》2015年第21期5382-5386,共5页Hubei Agricultural Sciences

基　　金：聊城大学博士科研启动基金(31805)

摘　　要：通过单因素试验和正交试验探讨了Fe S0_4溶液用量、水杨酸-乙醇溶液用量、H_20_2溶液浓度、反应温度、反应时间对Fenton反应体系的影响,筛选出羟自由基反应体系的最优反应条件,并检测了乙醇体积分数、p H对反应体系的影响。结果表明,最佳反应条件为1.8 mmol/L的Fe S0_4溶液2.50 m L,1.8 mmol/L的水杨酸-乙醇溶液2.00 m L,0.05%H_20_2溶液0.10 m L,蒸馏水0.50 m L,20℃水浴10 min。反应体系的p H及待测液乙醇体积分数对反应体系有明显影响,建议待测液含乙醇时,应做相同体积分数乙醇对照组进行修正。Through single factor experiment and orthogonal experiment were conducted to study the effects of FeS04 solution dosage, salicylic acid-ethanol dosage,H202 concentration, temperature, time of reaction system, screening out the optimum re-action conditions of hydroxyl free radical reaction system, and 1.8 mmol/L FeS04 solution for 2.50 mL,1.8 mmol/L of salicylic acid-ethanol solution 2.00 mL, 0.05% H202 solution 0.10 mL,0.50 mL of distilled water, in 20℃ water bath for 10 min. In addition, the effects of volume fraction of ethanol solution and the pH were also discussed. The results showed that pH and ethanol had obvious effects on the reaction system. The Control group should add ethanol with same concentration of experi-mental group.

关 键 词：FENTON反应 羟自由基 分光光度法 水杨酸 

分 类 号：S-3[农业科学]