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应用正交试验法对清金糖浆部分药材的水提取工艺进行了优选，试验结果表明，以加水１０倍量，煎煮提取２次，１ｈ／次为最佳条件。
The orthogonal test method was used to optimize the water extraction process of some of the Qingjin Syrup medicinal materials. The experimental results showed that the best condition was to add 10 times the amount of water and extract it twice by boiling for 1 hour.