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某些保键药物、食品中含有桉叶素、薄荷脑、樟脑等物质,对于这些物质的两种或三种混合物的气相色谱分析已有不少报导。文献报导用气相色谱法测定药物软膏中樟脑、薄荷脑和水杨酸甲酯的含量,提出用苯甲醇作内标,用程序升温的方法。本文采用苯甲酸乙酯作内标,以恒温操作法,用国产色谱仪对上述混合物进行定量分析,方法简便,同样取得满意的结果。
Some key drugs, foods containing cineole, menthol, camphor and other substances, for these two or three mixtures of gas chromatography has been reported. Reported the use of gas chromatography in the determination of drug ointment camphor, menthol and methyl salicylate content, the proposed use of benzyl alcohol as an internal standard, the program warming method. In this paper, ethyl benzoate as an internal standard, with constant temperature operation, with a domestic chromatographic analysis of the above mixture, the method is simple, also obtained satisfactory results.