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目的建立久强脑立清中薄荷脑、龙脑的含量测定方法。方法采用GC法,用PEG-20M 10%涂布浓度色谱柱,载气:氮气,检测器:氢火焰离子化检测器(FID)。结果薄荷脑在0.020 24~1.012 mg·ml-1范围内,回归方程为Y=32.10 X+45.30,r=0.9997。龙脑在0.020 06~1.003 mg·ml-1范围内,回归方程为Y=21.32 X+51.11,r=0.9992,两化合物在相应浓度范围内具有良好的线性关系。结论该方法简便快捷,准确、重复性好,灵敏度高,可用于建立久强脑立清的质量控制。
Objective To establish a method for the determination of menthol and borneol in Jiu-Qiang Nao Li-Qing. Methods The GC method was used. The column was packed with PEG-20M 10%, and the carrier gas was nitrogen gas. The detector was hydrogen flame ionization detector (FID). Results The menthol in the range of 0.020 24 ~ 1.012 mg · ml-1, the regression equation was Y = 32.10 X + 45.30, r = 0.9997. The range of 0.020 06 ~ 1.003 mg · ml-1 ranged from 0.220 to 1.003 mg · ml-1 and the regression equation was Y = 21.32 X + 51.11, r = 0.9992. The two compounds had a good linear relationship in the corresponding concentration range. Conclusion The method is simple, rapid, accurate, reproducible and sensitive. It can be used to establish the quality control of long-qi nao lien.