HPLC法测定安神补脑液中防腐剂的含量
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篇名: | HPLC法测定安神补脑液中防腐剂的含量 |
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摘要: | 目的:建立测定安神补脑液中防腐剂含量的方法。方法:采用高效液相色谱法。色谱柱为Agilent Zorbax SB-C18,流动相为乙腈-0.05%磷酸溶液(梯度洗脱),流速为1.0 mL/min,检测波长为236 nm,柱温为30 ℃,进样量为10 μL。结果:苯甲酸和羟苯乙酯检测质量浓度线性范围分别为12.85~128.54 μg/mL(r=0.999 9)、4.05~40.48 μg/mL(r=0.999 8);定量限分别为0.514、1.012 μg/mL,检测限分别为0.171、0.353 μg/mL;精密度、稳定性、重复性试验的RSD<1.0%;加样回收率分别为99.38%~100.21%(RSD=0.31%,n=6)、97.96%~100.72%(RSD=0.91%,n=6)。结论:该方法操作简单、结果准确,可用于安神补脑液中防腐剂的含量测定。 |
ABSTRACT: | OBJECTIVE: To establish a method for the determination of antiseptics in Anshen bunao oral liquid. METHODS: HPLC method was adopted. The determination was performed on Agilent Zorbax SB-C18 column with mobile phase consisted of acetonitrile-0.05% phosphorice acid solution (gradient elution) at the flow rate of 1.0 mL/min. The detection wavelength was set at 236 nm, and column temperature was 30 ℃. The injection volume was 10 μL. RESULTS: The linear range of benzoic acid and ethylparaben were 12.85-128.54 μg/mL(r=0.999 9) and 4.05-40.48 μg/mL(r=0.999 8), respectively. The limits of quantitation were 0.514, 1.012 μg/mL. The limits of detection were 0.171, 0.353 μg/mL. RSDs of precision, stability and reproducibility tests were all lower than 1.0%. The recoveries were 99.38%-100.21% (RSD=0.31%,n=6), 97.96%-100.72%(RSD=0.91%,n=6). CONCLUSIONS: The method is simple and accurate, and can be used for content determination of antiseptics in Anshen bunao oral liquid. |
期刊: | 2017年第28卷第33期 |
作者: | 陈灵君,王发英,王伟影 |
AUTHORS: | CHEN Lingjun,WANG Faying,WANG Weiying |
关键字: | 高效液相色谱法;安神补脑液;防腐剂;含量 |
KEYWORDS: | HPLC; Anshen bunao oral liquid; Antiseptics; Content |
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