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氧氟沙星三元配合物的光谱分析新方法研究及应用
引用本文:孙 洁,徐丽芳,陆 斐,陶建伟,陆鸣杰.氧氟沙星三元配合物的光谱分析新方法研究及应用[J].上海师范大学学报(自然科学版),2012,41(5):502-505.
作者姓名:孙 洁  徐丽芳  陆 斐  陶建伟  陆鸣杰
作者单位:上海应用技术学院 化学与环境工程学院,上海,200235
基金项目:上海市教委自然科学基金,上海市优秀青年教师专项基金
摘    要:以水一乙醇作为溶剂,在pH为5.8的磷酸二氢钾一氢氧化钠缓冲溶液中,氧氟沙星与茜素、稀土镧离子反应形成三元配合物体系.紫外吸收光谱研究结果表明:该三元配合物体系在295nm处有最大吸收波长,表观摩尔吸收系数为3.60X10。L·mol-1·cm-1.氧氟沙星在0.54~30.36mg/L范围内符合朗伯一比尔定律,方法的检出限为0.02mg/L.用于市售药品的含量分析,得回收率为93.9%~97.11%,相对标准偏差为0.65%~1.29%.

关 键 词:氧氟沙星  稀土元素  紫外分光光度法
收稿时间:2012/9/7 0:00:00

The research and application of a new spectrophotometric method for ofloxacin ternary complex
SUN Jie,XU Lifang,LU Fei,TAO Jianwei and LU Mingjie.The research and application of a new spectrophotometric method for ofloxacin ternary complex[J].Journal of Shanghai Normal University(Natural Sciences),2012,41(5):502-505.
Authors:SUN Jie  XU Lifang  LU Fei  TAO Jianwei and LU Mingjie
Institution:(School of Chemical and Environmental Engineering,Shanghai Institute of Technology,Shanghai 200235,China)
Abstract:Lanthanum( III ) ion is coordinated with ofloxacinand and alizarin to form a rare earth ternary complex with potassium dihydrogen phosphate - sodium hydroxide buffer solution ( pH = 5.8 ) in the solvent of ethanol. The absorption peak of the rare earth ternary complex is centered at 295 nm. Its apparent molar absorptivity at 295.0 nm is 3.60 x 104 Lomol - locm- 1. The linear range was 0.54 - 30.36 mgoL - 1 with a detection limit of 0. 012 mgoL - 1. It's a simple, rapid, and convenient method for the determination of the investigated drug in tablet.
Keywords:ofloxacin  lanthanon  UV spectrophotometric method
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