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目的建立毛细管GC法测定冠心膏中樟脑、薄荷脑、冰片的含量测定方法。方法采用DB-WAX毛细管柱,FID检测器,挥发油提取法净化样品,乙酸乙酯为稀释溶剂。结果樟脑平均回收率97.3%;RSD为1.1%、薄荷脑平均回收率96.7%;RSD为1.0%、冰片平均回收率97.7%;RSD为0.9%。结论改方法简单、准确、重复性好,为冠心膏的质量控制提高提供了依据。
OBJECTIVE To establish a method for the determination of camphor, menthol and borneol in Guanxin Paste by capillary gas chromatography. Methods DB-WAX capillary column, FID detector, volatile oil extraction method to purify the sample, ethyl acetate as a dilute solvent. Results The average recovery of camphor was 97.3%. The RSD was 1.1%. The average recovery of menthol was 96.7%. The RSD was 1.0%. The average recovery was 97.7%. The RSD was 0.9%. Conclusion The method is simple, accurate and repeatable, which provides a basis for the quality control of Guanxin Paste.