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1)  ethanol refluxing method
乙醇回流法
1.
Flavonoids were extracted from Sophora flavescens by means of ethanol refluxing method,and measured by using of spectrophotometer at 510 nm.
为探讨苦参中黄酮类化合物体外抑菌活性,采用乙醇回流法从苦参中提取含黄酮类化合物并用分光光度法在510 nm处测定黄酮含量。
2.
CO2-SFE and ethanol refluxing methods were repectively used to extract 1 -acetoxychavicol acetate(ACA) from Alpinia galanga(L.
本实验采用CO2超临界流体萃取法(CO2-SFE)和乙醇回流法提取大高良姜的有效成分1'-乙酰氧基胡椒酚乙酸酯(ACA),通过硅胶柱纯化前后TLC图谱、HPLC图谱、有效成分ACA的含量及萃取物的物理指标为指标评价两种方法。
2)  Ethanol Hot Refluxing
乙醇回流提取法
3)  hydrochloride and ethanol refluxing process
盐酸乙醇回流法
1.
Methods; Contents of ephedrine in the ephedra extact is index, the comparison study of method of decocting 、the ethanol refluxing 、hydrochloride and ethanol refluxing process ,comparison with ephedrine in their the dry pruduct of extract.
方法:以麻黄提取物中麻黄碱含量为指标,考察水煎法、乙醇回流法和盐酸乙醇回流法经干燥的提取物中提取麻黄碱的多寡,并采用三水平四因素(盐酸摩尔浓度、盐酸乙醇倍数、回流时间、提取次数)正交试验法对盐酸乙醇提取条件进行优选。
4)  Alcohol refluxing method
醇回流法
5)  Water-warm immersion-alcohol reflux
水温浸-乙醇回流法
6)  ethanol-extracting
乙醇回流提取
1.
The results showed that the optimized conditions of ethanol-extracting were as follows: 70% ethanol extracting at 80℃ for 1 h,and the ratio of material to solvent is 1:10,under which the extraction rate was 62.
结果表明,乙醇回流提取的最佳工艺条件为乙醇浓度70%,料液比1:10,提取时间1h,提取温度80℃,最佳提取率为62。
补充资料:双温法回流
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CAS号:

性质:利用两种温度进行同位素交换并实现回流操作的方法。H2S-H2O体系富集氘时,冷塔中氘自气相H2S向液相H2O中富集。贫氘的H2S转入热塔后,温度升高α减小,氘又从H2O转入H2S内。低温塔富集氘,高温塔实际起化学相的转化作用。双温法相转化程度比化学法低,但经济、可靠。H2S-H2O双温交换过程是当今世界生产重水的主要方法。

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