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注射用双黄连是由双花、连翘、黄芩三种药材提取液经高温喷雾干燥而成的注射用粉末。有清热解表,抗病毒等作用。其中连翘中的成分有连翘甙,连翘酚,6、7—二甲氧基香豆素,芦丁等。测定其中连翘甙的含量,可有效地控制其制剂质量。1 仪器与试药 仪器:Watera—510型泵,490—型多功能紫外检测器,YWC—C_(18)柱(20cm×4.6mmI.D),大连产。试药:甲醇,冰乙酸均为分析纯。蒸馏水。2 溶液的配制 对照品溶液的配制:取连翘甙对照品适量,精密称定,用甲醇溶解并稀释成每ml含连翘甙
Shuanghuanglian for injection is a powder for injection made by high-temperature spray drying of the extracts of Shuanghua, Forsythia, and Scutellaria. There are heat solutions, anti-virus and other effects. Among the components of Forsythia suspensa, there are forsythia, forsythiaquinone, 6,7-dimethoxycoumarin and rutin. Determination of the content of forsythia quinone can effectively control the preparation quality. 1 Instruments and reagents Instrument: Watera-510 pump, 490-type multi-functional UV detector, YWC-C18 column (20cm×4.6mmI.D), produced in Dalian. Test drug: methanol, glacial acetic acid are all analytically pure. Distilled water. 2 Preparation of the solution Preparation of the reference solution: take appropriate amount of reference material of Forsythia, accurately weighed, dissolved in methanol and diluted to contain forsythia per ml.