Simultaneous Determination of Benzoic Acid and Salicylic Acid in Compound Benzoic Acid Embrocation by High Performance Liquid Chromatography
10.3870/j.issn.1004-0781.2018.02.023
- VernacularTitle:高效液相色谱法同时测定 复方苯甲酸涂剂中苯甲酸与水杨酸含量
- Author:
Shuo XU
1
;
Wenfeng XU
;
Xuejun WU
;
Pengfei JIN
Author Information
1. 北京医院药学部
- Keywords:
Benzoic acid embrocation,compound;
Benzoic acid;
Salicylic acid;
Chromatography,high-performance liquid
- From:
Herald of Medicine
2018;37(2):236-238
- CountryChina
- Language:Chinese
-
Abstract:
Objective To develope a high performance liquid chromatography ( HPLC) method for simultaneous determination of benzoic acid and salicylic acid in compound benzoic acid embrocation. Methods An Alltima C18 column (150 mm×4.6 mm,5 μm) was used for the separation, with methanol-0.1％ phosphoric acid (50:50) as the mobile phase at the flow rate of 1.0 mL?min-1 .The detection wavelength was set at 236 nm.The column temperature was 35 ℃ . Results The good linearity was obtained with the correlation coefficient (r) of 1.0000 for benzoic acid and salicylic acid;the precisions and stability were satisfactory, and the relative standard deviations (RSDs) were less than 0.3％.The average recoveries (n= 9) were 100.15％ and 99.85％ for benzoic acid and salicylic acid, respectively. Conclusion The established method is accurate, simple and rapid, and can be utilized for the simultaneous determination of benzoic acid and salicylic acid in compound benzoic acid embrocation.
