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2,4-二硝基酚分光光度法测定氯氮卓
Spectrophotometric Determination of Chlodiazepoxide Using 2,4-Dinitrophenol
【摘要】 在水溶液中 ,氯氮卓与 2 ,4 二硝基酚发生荷移反应 ,生成稳定的 1∶1的配合物 .最大吸收波长为 44 4nm ,表观摩尔吸光系数为ε =1.48× 10 3L/ (mol·cm) ,线性范围 3~ 96 μg/mL ,回收率为 99.95 %~ 99.97% ,相对标准偏差为 0 .5 5 %
【Abstract】 A new spectrophotometric method has been developed for the determination of chlodiazepoxide. It is based on a reaction of charge transfer with dinitrophenol in borax buffer solution. The apparent molar absorptivity is 1.48×10\+3 L/(mol·cm). The calibration curves are linear in the concentration range of 3~96 μg/mL. The composition of complex of chlodiazepoxide with dinitrophenol is 1∶1. This proposed method was found to be simple, quick and accurate for the determination of chlodiazepoxide in tablets.
【关键词】 分光光度法;
2,4-二硝基酚;
荷移反应;
氯氮卓;
【Key words】 spectrophotometry; 2,4 dinitrophenol; charge transfer reaction; chlodiazepoxide;
【Key words】 spectrophotometry; 2,4 dinitrophenol; charge transfer reaction; chlodiazepoxide;
- 【文献出处】 分析测试技术与仪器 ,Analysis and Testing Technology and Instruments , 编辑部邮箱 ,2001年04期
- 【分类号】O657.32
- 【被引频次】3
- 【下载频次】62