Methods: Ethanol as solvent, using ultrasonic extraction method of total flavonoids in propolis extracted using ultraviolet-visible spectrophotometry of total flavonoids were determined.
方法：以乙醇为溶剂，采用超声提取的方法对蜂胶中的总黄酮进行提取，利用紫外-可见分光光度法对总黄酮的含量进行测定。
The method for extraction genomic DNA from insect sample, such as ants, longicorn beetles and grasshoppers, which stored in formalin or 75% ethanol for 2~4 weeks, is described.
以蚂蚁、天牛、蝗虫等昆虫为实验材料，建立了75%酒精常温浸泡密封保存和福尔马林常温浸泡密封保存昆虫样品2~4周后进行全基因组DNA提取的方法。
Conclusion the ethanol extraction of baicalin antibacterial active ingredients better than the boiling method.
结论乙醇回流法提取黄芩有效成分的抑菌效果较水煮法好。
The invention discloses mulberry leaf extract, which has the extraction method that ethanol is used for extracting after a mulberry leaf is dried and smashed.
本发明公开了一种桑叶提取物，其提取方法为：桑叶干燥粉碎后，用乙醇提取。
The flavonoids were extracted with 70% ethanol as the solvent from Abrus cantoniensis with ultrasonic wave and extraction method.
以70%乙醇为溶剂，超声波提取法提取鸡骨草中的黄酮；
A new analytical method was investigated and proposed for determination of active magnesium oxide (free magnesium oxide) in the slag using ammonium nitrate - ethanol as the extraction reagent.
研究和提出了以硝酸铵-乙醇作为提取剂提取活性氧化镁(即游离氧化镁)的分析方法。
The best extraction method and process of flavonoids from water chestnut were studied by used ethanol extraction, ultrasonic extraction and microwave extraction.
研究了乙醇浸提法、超声波法和微波法提取荸荠总黄酮的最佳工艺。
ConclusionThe method of ultrasonic extraction has a higher extraction rate and efficiency than traditional ethanol extraction.
结论与传统的乙醇提取法进行对比显示，用超声波提取法具有快速、高效等特点。
METHODS an HPLC method was establish to develop fingerprints chromatogram of Ethanol extraction of Japanese Chuanxiong.
方法用HPLC法建立日本川芎醇提取物的指纹图谱。
For solving the problems of soybean oil extraction using 95% ethanol as solvent, a new oilseed pre-treatment method was proposed.
为解决95%乙醇浸出大豆油工艺中的几个难点，探索了新的油料预处理方法。
The method of on-line analysis of ethanol extraction process of Red Ginseng by NIRS had been built.
建立了红参醇提过程的近红外光谱在线分析方法。
Abstract : The two-step method to get carnosic acid from rosemary leaves was employed. The first step was getting rosemary extracts from rosemary leaves by ultrasoundassisted ethanol extraction;
摘要 ： 以迷迭香叶子为原料，采用两步法分离纯化鼠尾草酸，第一步：迷迭香叶经超声辅助乙醇提取，得到迷迭香提取物；
The best extraction method and process of flavonoids from water chestnut were investigated using ethanol extraction and microwave extraction respectively.
研究了乙醇浸提法、超声波法和微波法提取荸荠总黄酮的最佳工艺。
Therefore, the experimental conclusion of extraction of paeonol was: the steam distillation method was better than the ethanol refluxing method;
因此，丹皮中丹皮酚提取实验结论为：水蒸汽蒸馏法优于乙醇回流法；
Methods the Soxhlet extractor method was adopted for the extraction of pigments, and acid extraction and ethanol precipitation method was used for the preparation of pectin.
方法用索氏提取法提取色素，酸提取乙醇沉淀法制取果胶。
In this paper the extraction techniques by water, ethanol and water-extraction-and-alkali-deposition were compared, and it's founded the third method is the most efficient.
通过对水抽提、醇抽提、水提碱转法三种甜茶多酚抽提工艺进行对比，得出水提碱转法为较好的一种抽提方法。
In this paper the extraction techniques by water, ethanol and water-extraction-and-alkali-deposition were compared, and it's founded the third method is the most efficient.
通过对水抽提、醇抽提、水提碱转法三种甜茶多酚抽提工艺进行对比，得出水提碱转法为较好的一种抽提方法。
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