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目的研究油松节药材中α-蒎烯的测定方法,分析不同产地样品的量。方法采用溶剂超声提取样品、气相色谱法[HP-5弹性毛细管柱(0.32 mm×30.0 m×0.25μm)]测定油松节药材中α-蒎烯的量。结果α-蒎烯在0.01～10.0 mg/mL呈良好线性关系,r=0.999 9,平均回收率为99.7%;20批样品中α-蒎烯的平均质量分数为0.46%。结论本方法简便、准确,可用于油松节的质量控制。
Objective To study the method for determination of α-pinene in crude oil from Pinus tabulaeformis and analyze the amount of samples from different regions. Methods Solvent ultrasonic extraction of samples and gas chromatographic [HP-5 elastic capillary column (0.32 mm×30.0 m×0.25 μm)] was used to determine the amount of α-pinene in Pinus tabulaeformis. Results The linear relationship of α-pinene was between 0.01 and 10.0 mg/mL, r=0.999 9, the average recovery was 99.7%. The average mass fraction of α-pinene in the 20 batches of samples was 0.46%. Conclusion This method is simple and accurate and can be used for quality control of Pinus tabulaeformis.