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中药汤剂是我国医药上历史最悠久,应用最广泛的一种剂型。为了充分发挥药材的效用,对含挥发油成分的汤剂煎药的最适宜的时间进行研究,以找出较合理的煎药方法是有其实际意义的。一、实验方法测定比重小于1的挥发油,用水蒸气蒸馏法。取样品适量,称定重量,置圆底烧瓶中,加水淹没样品,并加入少量沸石,振摇混合后,浸泡一小时,连接挥发油测定器及回流冷凝器,用油浴缓缓加热至内容物沸腾,
Chinese herbal decoction is the oldest and most widely used dosage form in Chinese medicine. In order to give full play to the effectiveness of medicinal materials, it is of practical significance to study the optimum time for decoctions of decoction containing volatile oil components in order to find a reasonable method of decoction. First, the experimental method to determine the specific gravity of less than 1 volatile oil, steam distillation method. Take the appropriate amount of sample, weigh it, set it in a round bottom flask, add water to submerge the sample, add a small amount of zeolite, shake and mix, soak for one hour, connect the volatile oil measuring device and reflux condenser, slowly heat the oil bath to the contents boiling,