牛磺酸与对苯醌的荷移反应  

Charge Transfer Reaction of Taurine with Benzoquinone

作　　者：杨春梅[1] 李省云[1] 

机构地区：[1]太原师范学院化学系,太原市侯家巷8号030001

出　　处：《光谱实验室》2011年第4期1833-1836,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：山西省高校科技开发项目(20080025)

摘　　要：用分光光度法研究牛磺酸与对苯醌的荷移反应。实验表明,牛磺酸与对苯醌在pH 8.5的三酸缓冲溶液中,90℃水浴加热20m in,可生成稳定的荷移络合物。荷移络合物的组成比为2∶1,最大吸收波长λm ax=339nm,表观摩尔吸光系数ε=5.9×104L/m o.lcm,在4—180μg/mL的范围内符合比耳定律,回收率在96.1%—101.8%的范围内,相对标准偏差不大于3.0%。应用本法测定牛磺酸药物制剂的含量,可得到满意结果。The charge transfer reaction between taurine and benzoquinone was investigated by spectrophotometry.The stable charge transfer complex was formed by taurine and benzoquinone inpH 8.5 Britton-Robinson buffer solution with heating in water bath of 90℃ for 20min.The composition ratio of the complex of taurine with benzoquinone was 2∶1.The apparent molar absorptivity of the complex was 5.9×104L/mol·cm with maximun absorbance wavelength of 339nm.The charge transfer complex obeyed Beer＇s law in the concentration range of 4—180μg/mL,and the recovery was in the range of 96.1%—101.8%.The relative standard deviation was less than 3.0%.This proposed method is applied to the determination of the content of taurine in capsule and granule with satisfactory results.

关 键 词：荷移反应 分光光度法 牛磺酸 对苯醌 

分 类 号：O657.32[理学—分析化学]