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RP-HPLC同时测定诺替可滴耳液中3组分的含量
引用本文:郑芳,朱雪松,李志浩,何婧.RP-HPLC同时测定诺替可滴耳液中3组分的含量[J].中国药师,2009,12(6):750-752.
作者姓名:郑芳  朱雪松  李志浩  何婧
作者单位:郧阳医学院附属东风总医院药剂部,湖北 十堰,442008
摘    要:目的:建立诺替可滴耳液中诺氟沙星、替硝唑、氢化可的松的含量测定方法。方法:色谱柱:Kromasil C18柱(250mm×4.6mm,5μm),流动相:甲醇一乙腈加.025mol·L^-1磷酸溶液(用三乙胺调至pH至3.0)-注射用水,梯度洗脱。诺氟沙星,替硝唑,氢化可的松分别为288nm,318nm,245nm,流速:0.8ml·min^-1,柱温:室温。结果:诺氟沙星、替硝唑、氢化可的松分别在30.0~3001μg·ml^-1(r=0.9993)、30.0—300μg·ml^-1(r=0.9997)、5.0~50μg·ml^-1(r=0.9995)浓度范围内,峰面积与浓度的线性关系良好;平均回收率分别为99.5%(RSD=0.61%),99.9%(RSD=0.80%)和99.4%(RSD=0.89%)。结论:所用方法简便快速、结果准确可靠,适用于该复方制剂中3组分的同时测定。

关 键 词:诺氟沙星  替硝唑  氢化可的松  RP—HPLC  滴耳液

Determination of Three Components in Nuotike Ear Drops by RP-HPLC
Zheng Fang,Zhu Xuesong,Li Zhihao,He Jing.Determination of Three Components in Nuotike Ear Drops by RP-HPLC[J].China Pharmacist,2009,12(6):750-752.
Authors:Zheng Fang  Zhu Xuesong  Li Zhihao  He Jing
Institution:( Department of Pharmacy, General Hospital of Dongfeng Motor Corporation, Hubei, Shiyan, 442008, China)
Abstract:Objective: To establish a method for determination of norfloxacin, tinidazole, hydrocortisone in Nuotike ear drops. Method: The Kromasil C18 column (250mm×4.6mm,5μm) was used, the methanol-acetonitrile- 0.025mol·L^-1 phosphoric acid solution( adjusted to pH3.0 with triethylamine)-water for injection as mobile phase, gradient elution. Result: The peak areas and concentrations of norfloxacin, tinidazole, hydrocortisone showed the good correlation in following ranges: 30. 0-300μg·ml^-1( r = 0. 999 3 ), 30.0 - 300μg·ml^-1( r = 0.999 7 ) ,5.0 - 50μg·ml^-1 ( r = 0. 999 5 ) respectively ; The average recoveries were 99.5 % ( RSD = 0.61% ), 99.9% ( RSD = 0.80% ) and 99.4% ( RSD = 0.89% ), respectively. Conclusion: The method is simple, sensitive, accurate and suitable for the determination of three components in Nuotike ear drops.
Keywords:RP-HPLC
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