Content Determination of Compound Ofloxacin Ear Drops by HPLC Simultaneously
- VernacularTitle:高效液相色谱法同时测定复方氧氟沙星滴耳液中2组分的含量
- Author:
Wei LU
;
Hua GUO
;
Fantao ZENG
- Publication Type:Journal Article
- Keywords:
HPLC;
Compound ofloxacin ear drops;
Ofloxacin;
Dexamethasone acetate;
Content determination
- From:
China Pharmacy
2001;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To develop a HPLC method for simultaneous determinatio n of ofloxacin and dexamethasone ac?etate in compound ofloxacin ear drops.METHODS:The analysis was carried on a XDB-C 8 ,the mobile phase was composed of methanol-potassium dihydrogen phosphate(0.02mol/L)by gradient elution,the flow rate was1.0ml/min,the column tem?perature was30℃and the detection wavelength was at240nm.RESULTS:The detectable concentrations of ofloxacin and dexamethasone acetate showed good linear correlation in the ranges of100～500?g/ml and10～30?g/ml respectively,the av?erage recoveries of ofloxacin and dexamethasone acetate were100.6%(RSD=0.46%,n=9)and101.3%(RSD=0.72%,n=9)respectively.CONCLUSION:The method is accurate and reproducible and can be used for determination of ofloxacin and dexamethasone acetate in compound ofloxacin ear drops.
