查询词典 extraction

Thus, rapid extraction - ASE is suitable in substitution of Soxhlet extraction in laboratory condition.

因此，在实验室条件下，快速溶剂萃取法是一种可以替代索氏萃取法的新方法。

The reflux method was better than microwave-assisted extraction, compared with Soxhlet extraction method and ultrasound wave method.

结论不同提取方法影响虎杖蒽醌类成分和抗氧化活性，蒽醌类成分和抗氧化活性之间具有负相关的关系。

To study the best condition for distilling the active composition of aniseed.comparing the effect of the soxhlet′s extraction and ultrasonic extraction.

研究乙醇提取八角茴香油的最佳工艺条件，比较索氏提取法与超声波提取法的效果。

By C18 solid phase extraction and Soxhlet extraction, with GC analysis, the levels of polychlorinated organic compounds in middle and lower reaches of Liaohe River were investigated.

采用 C18固相萃取和索氏提取的方法，经气相色谱分析，调查了辽河中下游水体中多氯有机物的残留情况。

objective to optimize microwave extraction process of mannitol from sparganium stoloniferum.methodsguided by the contents of mannitol in sparganium stoloniferum, uniform design, response surface analysis and path analysis were used to optimize microwave extraction process by combining with single factor experiment.resultsobtained response surface equation is notable at the level a.01 and the relative error of the predicted value from the model was smaller than 1%.

目的优化三棱中甘露醇的微波辅助萃取工艺。方法以甘露醇含量为响应指标，通过均匀试验设计，采用二次响应曲面和通径分析并结合单因素实验优化三棱中甘露醇的微波辅助萃取工艺。

METHODSUsing orthogonal design, total flavonoids in extract was as evaluation index, and ethanol concentration, extraction time, ratio of material to solvent and extration frequency were as inspecting factors to screened the optimum extraction technique, and total flavonoids content in extract was detected by spectrophotography.

方法］采用正交设计法以提取物中总黄酮含量为评价指标，以乙醇浓度、提取时间、固液比及提取次数为考察因素，筛选翻白草的最佳提取工艺。应用分光光度仪测定提取物中总黄酮的含量。

METHODSUsing orthogonal design, total flavonoids in extract was as evaluation index, and ethanol concentration, extraction time, ratio of material to solvent and extration frequency were as inspecting factors to screened the optimum extraction technique, and total flavonoids content in extract was detected by spectrophotography.

［目的］探讨翻白草中总黄酮的最佳提取工艺。［方法］采用正交设计法以提取物中总黄酮含量为评价指标，以乙醇浓度、提取时间、固液比及提取次数为考察因素，筛选翻白草的最佳提取工艺。

The yield, chemical components and relative contents of essential oil extracted from Eupatorium adenophorum Spreng by Soxhlet extraction and steam distillation were compared. The volatile chemical constituents of essential soil extracted were analyzed by Gas Chromatography-Mass Spetrometry. The results showed that the constituents of the volatile from the same plant and the relative contents were significantly different due to different extraction methods.

采用索氏提取器及水蒸气蒸馏两种方法对采于不同时间、不同产地的紫茎泽兰Eupatorium adenophorum Spreng挥发性成分进行了提取，比较了两种方法的得油率、化学组成及其相对含量；采用GC-MS联用技术对其中的挥发性成分进行了分析。

The result shows that: the extraction of petroleum ether, polysaccharide and sodium copper chlorophyllin from banana leaves perform higher spumescence ability and foam stability. The critical concentration form pastern namely CMC and the surface tension in this concentration are 1.0 g/l (34.295 mN/m), 1.0 g/l (42.398 mN/m), 3.0 g/l (40.123 mN/m) respectively, which the value is close or excess the reference samples. The emulsify capability of the extraction of petroleum ether is the best in these active ingredients, and close to the emulsify capability of Tween-80. The emulsify capability of polysaccharide and sodium copper chlorophyllin from banana leaves are follow then.

试验结果表明：香蕉叶石油醚抽出物、叶多糖和叶绿素铜钠盐具有良好的起泡性和稳泡性；其临界胶束浓度CMC值和其该浓度下的表面张力分别为：1.0g/l（34.295 mN/m），1.0g/l（42.398 mN/m），3.0g/l（40.123 mN/m），已经接近或超过参照物的表面活性；香蕉叶石油醚抽出物的乳化能力最强，乳化性能已接近乳化剂吐温-80，其次为叶多糖和叶绿素铜钠盐。

On the basis of single-factor experiments, the effects of different temperature, time and ethanol weight percent on the extraction yield of total alkaloid from Radix Stemona were investigated with a three-factor Box-Behnken centerunited design. The extraction parameters were optimized with Response Surface Methodology.

在单因素试验的基础上，选取百部总生物碱提取温度、提取时间和乙醇质量分数3个因素进行Box-Benhnken中心组合设计，利用响应面分析法对其提取工艺参数进行优化。

If you were not , and OS X just booted normally, have no fear.

如果你没有，和OS X刚刚启动通常，没有恐惧。

I only want to preserve our all .

我只想保存好我们的一切