HPLC法同时测定复方麝香草酚溶液中3种有效成分的含量
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篇名: HPLC法同时测定复方麝香草酚溶液中3种有效成分的含量
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摘要: 目的:建立同时测定复方麝香草酚溶液中苯甲酸、水杨酸甲酯、麝香草酚含量的方法。方法: 采用高效液相色谱法。色谱柱为Thermo Hypersil BDS C18,流动相为乙腈-水-冰醋酸(40 ∶ 60 ∶ 0.02,V/V/V),流速为1 ml/min,检测波长为275 nm,柱温为30 ℃,进样量为10 μl。结果: 苯甲酸、水杨酸甲酯、麝香草酚检测质量浓度线性范围分别为0.045 2~0.903 0、0.049 2~0.984 4、0.046 4~0.927 0 mg/ml(r=0.999 9);精密度、稳定性、重复性试验的RSD<2%;加样回收率分别为98.40%~108.88%、98.21%~104.07%、96.83%~107.09%,RSD分别为3.26%、1.87%、3.33%(n=9)。结论: 该方法简便、准确、特异性好,可用于同时准确测定复方麝香草酚溶液中苯甲酸、水杨酸甲酯、麝香草酚的含量。
ABSTRACT: OBJECTIVE:To establish amethod for simultaneous determination ofbenzoic acid, methylis salicylas and thymol in Compound thymol solution.METHODS:HPLC was performed on the column of Thermo Hypersil BDS C18 with the mobile phase ofacetonitrile-water-acetic acid (40 ∶ 60 ∶ 0.02,V/V/V)at a flow rate of 1 ml/min, the detection wavelength was 275 nm, column temperature was 30 ℃, and injection volume was 10 μl. RESULTS:The linear range was 0.045 2-0.9030 mg/ml for benzoic acid, 0.0492-0.9844 mg/ml for methylis salicylas and 0.046 4-0.927 0 mg/ml for thymol; RSDs of precision, stability and reproducibility tests were lower than 2%; recoveries were 98.40%-108.88%(RSD=3.26%,n=9),98.21%-104.07%(RSD=1.87%,n=9) and 96.83-107.09%(RSD=3.33%,n=9),respectively. CONCLUSIONS:The method is simple, accurate and specific,and accurately determine the contents of benzoic acid,methylis salicylas and thymol in Compound thymol solution.
期刊: 2016年第27卷第15期
作者: 陈伟,杨珺,杨谨成,周海燕,王宇,李国辉
AUTHORS: CHEN Wei,YANG Jun,YANG Jincheng,ZHOU Haiyan,WANG Yu,LI Guohui
关键字: 苯甲酸;水杨酸甲酯;麝香草酚;高效液相色谱法;含量测定
KEYWORDS: Benzoic acid;?Methylis salicylas;?Thymol;?HPLC;?Content determination
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