Simultaneous Determination of Ornidazole and Dexamethasone Sodium Phosphate in Compound Ornidazole Film by HPLC

VernacularTitle:HPLC法同时测定复方奥硝唑贴膜中奥硝唑和地塞米松磷酸钠的含量
Author: Wei LI ; Kai LEI ; Chengliang ZHANG ; Wenxi HE ; Dong LIU ; Ying CHEN
Publication Type:Journal Article
Keywords: Compound ornidazole film; Ornidazole; Dexamethasone sodium phosphate; HPLC
From: China Pharmacy 2016;27(21):2975-2977
CountryChina
Language:Chinese
Abstract: OBJECTIVE:To establish a method for the simultaneous determination of ornidazole and dexamethasone sodium phosphate in Compound ornidazole film. METHODS:HPLC was performed on the column of Inertsil ODS-3 with mobile phase of methanol-20 mmol/L phosphate buffer(pH was adjusted to 7.40 with glacial acetic acid)(55∶45,V/V)at a flow rate of 1.0 ml/min, column temperature was 30 ℃,detection wavelength was 242 nm and volume injection was 10 μl. RESULTS:The linear range were 1-100μg/ml for both ornidazole(r=0.999 7)and dexamethasone sodium phosphate(r=0.999 9);RSDs of precision,stabili-ty and reproducibility tests were lower than 2.0%;recoveries were 96.50%-99.80%(RSD=1.02%,n=9) and 96.50%-99.60%(RSD=0.99%,n=9). CONCLUSIONS:The method is specific with good precision and stability and high accuracy,and can be used for the simultaneous determination of ornidazole and dexamethasone sodium phosphate in Compound ornidazole film.