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采用Ｌ９（３４）正交试验设计，以延胡索乙素和熊果酸含量作为考核指标，对心痛宁冲剂的醇提工艺进行了研究。结果表明：以６０％ 乙醇冷浸２４ ｈ，第１ 次３ 倍量、３ ｈ，第２ 次２ 倍量、２ ｈ，提取２ 次为最佳提取工艺
L9 (34) orthogonal test design was used to evaluate the alcohol extraction process of Xintongning Granules with the content of tetrahydropalmatine and ursolic acid as assessment indicators. The results showed that the best extraction process was obtained by cold immersing for 24 h with 60% ethanol, 3 times the first time, 3 h, 2 times the second time, 2 h, and 2 extractions.