对肉桂采用水蒸气回流法提取挥发油。
The essential oil was extracted from wild Cinnamon by steam distillation.
目的：优化乙醇回流法提取淫羊藿的工艺条件。
Objective: To optimize the ethanol refluxing and extracting process of Herba Epimedii with orthogonal design.
筛选出有机溶剂热回流法提取草木樨中的黄酮。
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。
Conclusion the ethanol extraction of baicalin antibacterial active ingredients better than the boiling method.
研究了用酸性醇溶液回流法提取魔芋中总生物碱的方法和条件。
The ways and the conditions how to use the acidity alcohol to extract the whole alkaloid in the amorphaphallus konjak are researched .
结果与结论：乙醇回流法对淫羊藿苷的提取效果优于乙醇超声法；
RESULTS & CONCLUSION:The ethanol refluxing process is better than the ethanol ultrasonic process in the extraction of icariin.
确定了以一种新原料-废弃花生植株，并采用回流法提取白藜芦醇。
The abandoned peanut plants after harvest are selected to used as raw materials in this thesis.
方法利用比色法、微波消解法与标准回流法对各种实际样品进行测定。
Methods the levels of COD of the water samples were determined by spectrophotometry, microwave di-gestion and standard circumfluence method respectively.
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；
Therefore, the experimental conclusion of extraction of paeonol was: the steam distillation method was better than the ethanol refluxing method;
介绍了用密封法测定焦化厂废水COD的方法，并与回流法进行了比较。
The sealing method for determining COD in coking plant wastewater is introduced and compared with reflux method.
采用加压提取法提取枳实中黄酮类成分，并与乙醇回流法比较提取效果。
The extraction process of flavonoids from Frutus aurantii immaturus using pressurized extraction(PE) was studied and compared with reflux extraction.
并以标准回流法与之进行对比实验，经一致性t检验，两种方法并无显著性差异。
After comparing with standard backflow method and t inspection, we found these two methods had not significant difference.
比较了索氏提取法、热回流法和冷浸法等提取方法；提出采用水沉法精制粗黄酮浸膏；
In this paper, the methods of Soxhlet, hot-refluxing and cold-dipping were compared and the method of water-deposition to refine flavones was put forward.
方法：分别采用冷浸法、匀浆-空化法、超声法、热回流法对长春花鲜叶进行提取并比较含量。
METHODS:Anhydrovinblastine was extracted from catharanthus roseus fresh leaves in different ways:merceration, homogenate-cavitation, ultrasonic wave method and hot reflux method.
加入夹带剂乙醇后白花前胡甲素提取量增加，且超临界流体萃取法明显高于水煎煮和加热回流法。
As cosolvent alcohol was added, the amount of extraction of the praeruptorin A increased, and the amount of SFECO2 extraction was higher than those of decoction and heating reflux.
分别考察回流法提取法、超声波萃取法及微波萃取法。选择最优提取工艺，对样品进行含量测定。
The backset current extraction, ultrasonic-assisted extraction and microwave extraction were tested to select the optimum extraction and the quantitative analysis of specimen was made.
对cod重铬酸钾回流法中的主要干扰离子，氯化物的消除，选择了用硫酸银代替硫酸汞做掩蔽剂。
To remove main disturbing ion, chlorine ion in the COD potassium dichromate reflux method, silver sulfate replaces mercury sulfate as a screening agent.
目的比较浸渍法、一般回流提取法、连续回流法、超声提取法、复合方法提取黄连中盐酸小檗碱的提取率。
Objective to compare impregnation, extraction back to normal, continuous circumfluence, ultrasonic extraction, complex method of extraction of berberine hydrochloride in the Chinese extraction rate.
目的：考察不同提取方法对山茱萸总皂苷测定的影响，为准确测定山茱萸皂苷的含量提供可行方法。 方法： ① 甲醇回流法；
AIM: To review effects of different methods of extracting total saponins from Cornus officinalis so as to provide an effective way to accurately determine total saponins.
结果采用乙醇回流提取后，利用酸提碱沉法，盐酸药根碱与盐酸巴马汀含量最高。
Results the alkaloid content was the highest after circumfluence extraction by ethanol acid-base precipitation.
该文采用微波辅助法提取米邦塔仙人掌多糖，并与热回流提取方法进行比较。
The microwave-assisted technology for extracting polysaccharide from Opuntia Milpa Alta was studied, compared with hot reflux extraction.
在木炭-硫磺法生产二硫化碳中，产生大量的回流硫磺。
When carbon disulphide is producing by reacting carbon and sulphur, it brings about return sulphur in large quantities.
以黄芩甙为标样，对云南松花粉中黄酮类化合物采用甲醇回流提取，用紫外分光光度法进行测定。
Using baicalin as the standard sample, the flavone substances in pollen of Yunnan pine were determined through methyl alcohol back flow extraction and ultraviolet spectrophotometer.
用回流加热链着火分析法，分析比较了钝体燃烧器和开缝钝体燃烧器不同的稳焰机理。
By the method of circle heating chain analysis, the different mechanism of flame stability between bluffbody burner and slitting bluffbody burner were compared.
方法：采用HPLC法对大黄水回流、隔氧水回流及乙醇回流后提取液中各种蒽醌类成分的含量进行监测。
METHODS Contents of anthraquinones in Radix et Rhizoma Rhei extracts were determined using HPLC after water reflux, deoxygenated water reflux or ethanol reflux.
本文讨论了电气化铁道牵引回流对轨道电路干扰的测试力法。
This paper discusses the analysis method on measuring and testing the railway electrification interference to track circuits.
用解剖、血管透明法对20例新鲜尸体的椎体静脉回流进行了研究。
The venous drainage of the human vertebral body was studied in 20 fresh cadavers by dissection and clearing.
建立了间歇精馏无回流操作过程的数学模型，采用四阶龙格库塔法求解初值问题，计算无回流开工过程及间歇精馏脉动操作过程中无回流周期内各塔板浓度变化的动态特性。
The dynamic characteristic of concentration change on plates of batch rectification column in no reflux start up process and in no reflux period of pulse operation process have been calculated.
为了开发莽草酸资源，以高效液相色谱法分析了马尾松、侧柏以及八角茴香中的莽草酸含量，并研究了马尾松中莽草酸的超声提取、加热回流两种提取方法和不同加标水平的回收试验。
To exploit the resources of shikimic acid, the content of shikimic acid in Masson pine leaf, Oriental arborvitae leaf and Star anise, the extraction and recovery experiments were studied by HPLC.
为了开发莽草酸资源，以高效液相色谱法分析了马尾松、侧柏以及八角茴香中的莽草酸含量，并研究了马尾松中莽草酸的超声提取、加热回流两种提取方法和不同加标水平的回收试验。
To exploit the resources of shikimic acid, the content of shikimic acid in Masson pine leaf, Oriental arborvitae leaf and Star anise, the extraction and recovery experiments were studied by HPLC.
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