查询词典 extraction

On the basis of the single-factor experiment, the quaternionic quadratic rotational combination was used to optimize the extraction process of total relative flavone that came from fermentation fluid of citrus, and we had used the response surface methodology to study the best horizontal extent of solid-to-liquid ratio, extraction time, alcohol density, the microwave power which affected the rate of total flavone relative extraction.

在单因素试验的基础上，采用四元二次通用旋转组合试验优化柑橘皮渣发酵液总黄酮的提取工艺，用曲面响应法对影响总黄酮得率的料液比，提取时间，乙醇浓度，微波功率的最佳水平范围进行研究。

Methods With the extraction yield of volatile oils, contents of evodiamine and rutaecarpine metered by HPLC as indexes, the extraction efficiency of the above-mentioned combined extraction method was evaluated.

以挥发油得率、吴茱萸碱和吴茱萸次碱保留率及药材中生物碱和水溶性成分的HPLC图谱为指标，考察水蒸气蒸馏-醇提过大孔树脂柱联用工艺对保留吴茱萸有效成分的影响。

Objective To study the effects of factors like solvent dosage,extraction time and extraction times on the production extraction of flavonoids from Scutellaria baicalensis .

目的探讨黄芩中总黄酮提取工艺中的提取溶剂用量、提取时间、提取次数对黄芩中总黄酮得率的影响。

Optimization of the extracting method of Chlorogenic Acid from Flos Lonicerae was studied by three different methods of ultrasonic extraction, sorbitic extraction, and improved method of sorbitic extraction.

采用超声波法、索氏法、改良索氏法3种方法分别从金银花中提取绿原酸，用紫外光谱法和高效液相色谱法对其进行定性定量分析。同时用金银花乙醇提取物及纯化的绿原酸对乳房炎主要致病菌进行抑菌试验。

Compared with Soxhlet extraction and ultrasonic extraction, microwave-assisted extraction is more efficient.

对比了密闭微波萃取同索氏萃取和超声萃取丹参有效成分的差异。

The supercritical fluid extraction of carbon dioxide owns lower extraction temperature and high diffuse coefficient. So, the technology is able to extract the thermal instable materials. In this study, we extract the polyphenols from damage starfruit by the supercritical carbon dioxide fluid and confer the extraction outcome. To seek the optimum operation conditions was the main purpose and provided the technology to starfruit processing industries.

超临界二氧化碳萃取技术具有低萃取温度，高扩散能力之特性，可将天然中热不稳定性物质萃出，并保留活性成分，所以本研究拟对受伤杨桃以超临界二氧化碳流体萃取技术进行杨桃多酚的萃取，并探讨杨桃多酚的萃取率，以提供杨桃汁制造业者回收杨桃之最佳化方法，并提高杨桃的附加价值。

This paper introduced a single antioxidant extraction system--5% sulphosalicylic acid which could extract and assay ASA/DHA and GSH/GSSG simultaneously. Through analysis of kinetic curve of DTNB-GR recycling, the suitable time parameter was selected for the measurement GSH/GSSG. This system made the extraction of antioxidant quick and easy, and enhanced the accuracy, reproducibility and comparability for the antioxidant measurement through it compared to original method of extraction and measurement.

文章介绍了在一个单一提取系统—— 5 %磺基水杨酸中同时提取并测定了抗氧化剂 ASA/DHA和 GSH/GSSG，通过 DTNB— GR循环的动力学分析固定了 GSH/GSSG测定的最佳时间参数；通过与原提取和测定方法的比较，此法对于测定抗氧化剂有很好的准确性、重复性和可比性，使抗氧化剂的提取和测定变得简便快速。

The optimum conditions of extracting WUAX by Ba2 are as follows: WUS (the water unextractable substance that removed protein and starch):Ba2 is 1:188, the extraction temperature is 63°C, the extraction time is 3h, the extraction rate is 31.60%.

Ba2提取WUAX的最佳工艺条件为：料液比1：188，提取温度63℃，提取时间3h，提取率为31.60%；方差分析结果显示各因素对提取率影响的模型显著(P.05)，提取温度的平方项对提取率的影响高度显著(P.001)；最佳工艺条件下得到的提取物中WUAX含量为92.09%。

The bonding form in extracted species can be represented by:〓 It was the direct bonding of donors that made the extraction of partially hydrolyzed iron much more effective, and the stereoselectivity of coordination that made the extraction of unhydrolyzed iron depressed, so that the extraction system became selective to the partially hydrolyzed iron .

研究中选择仲辛醇作为协萃剂对ZnSO〓溶液中的Fe-Zn分离进行了进一步的考查，无论对配制的溶液或是真实的ZnS高压浸取液，除铁及Fe-Zn分离的效果都非常好，而且反萃铁时的用酸量与传统的伯胺除铁过程相比降低了10倍以上，该体系是一个较为经济合理的具有一定发展潜力的萃取除铁体系。

Results showed that extraction abilities depends on the hydrophobic of solutes which pK〓 values are similar, e. g. acetic, propionic, butyric and valeric acids, while pK〓 values affect dominantly the extraction abilities of acids with similar hydrophobic, e. g. formic, acetic, chloroacetic, dichloroacetic, and trichloroacetic acids. Meanwhile, diluents and TOA concentration also affect the extraction equilibria of acids through the specific basicity of TOA .

TOA对酸性差别很小的一元羧酸如乙酸、丙酸、丁酸、戊酸的萃取能力主要取决于羧酸的疏水性参数logP；TOA对疏水性参数差别较小的羧酸如甲酸、乙酸、一氯乙酸、二氯乙酸、三氯乙酸的萃取能力主要取决于羧酸的电性参数；稀释剂的种类、TOA的浓度都会影响TOA的表观碱度pH〓，并通过TOA的表观碱度影响羧酸的萃取平衡。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。