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止痒乳具有润肤止痒作用,主要用于治疗因季节变化所引起的皮肤瘙痒症,本文采用反向高效液相色谱法测定止痒乳中维生素E的含量,方法专属性强、简单、准确、重现性好。1 仪器和试剂 HP-1100高效液相色谱系统。实验用甲醇为色谱纯,无水乙醇为分析纯。维生素E对照品从中国药品生物制品检定所购得。
Antipruritic milk has emollient and antipruritic effects and is mainly used for the treatment of pruritus caused by seasonal changes. This study used reversed-phase high performance liquid chromatography to determine the content of vitamin E in itching milk, which was highly specific and simple. Accurate and reproducible. 1 Instruments and reagents HP-1100 high-performance liquid chromatography system. The methanol used for the experiment was chromatographic, and the absolute ethanol was pure. The vitamin E reference was purchased from the China National Pharmaceutical and Biological Products Testing Institute.