查询词典 extraction thimble

The review highlights the technical developments in the identification,quantification and separation of α-hydroxyacetic acid,especially solvent extraction and synergistic extraction.

文章比较了各种羟基乙酸定性及定量分析方法，综述了羟基乙酸分离方法，特别是溶剂萃取和协同萃取效应。最后，分析了羟基乙酸的开发前景。

Change of arch width after extraction and nonextraction treatment;2. Effects on arch width after extraction and nonextraction treatment;3. Intercanine and intermolar arch widths and anterior arch depths of the maxillary and mandibular arches were measured.

结论与不拔牙矫治相比，拔牙矫治不会减小尖牙间牙弓宽度和前牙段牙弓长度而影响面部美观；但拔牙和不拔牙矫治都能引起磨牙间牙弓宽度的改变，可能影响疗效的长期稳定性。

To improve the extraction of gold from electronic waste, statistical methods were used to analyze the impact of different factors affecting the extraction of Au using methyl isobutyl ketone as solvent.

以电子废料中的金为研究对象，用统计学方法对甲基异丁基甲酮萃取电子废料中金的影响因素进行了探讨和分析。

In order to investigate the effects of magnetic field on the liquid-liquid extraction,the extraction process of acetone-water-methyl isobutyl ketone system was studied under magnetic field with different magnetic induction intensities.

为探讨磁场对液-液萃取过程的影响，本研究在不同磁感应强度的磁场中，对丙酮-水-甲基异丁基酮物系的萃取过程进行了研究。

The kinetic mechanism of extraction reaction and the influence of isobutyl alcohol on the extraction rates of uranium with TOA are examined.

测定了三辛胺浓度、硫酸浓度、温度和异丁醇对萃取速率的影响。

To isolate Jasminum flavonoids, it took an investigation to the effect of various conditions in extraction. The result was with EtOH concentration 70%, temperature 75℃, extraction time 4h and the ratio of solution to liquid 1:15.The studies implemented macroporous resin to enrich Jasminum flavonoids.

在茉莉花干黄酮的提取工艺研究中，以乙醇水溶液为溶剂，考察了不同乙醇浓度浸提液、不同浸提时间，不同浸提温度和不同料液比对茉莉黄酮提取效果的影响，通过正交实验确定了茉莉黄酮的最佳提取工艺为乙醇浓度70％，温度75℃，提取时间为4h，固液比为1：15。

Measurements of protein concentration and the sodium dodecyl sulphate-polyacrylamide gel electrophoresis showed that 60%τ-butanol plus 4% DTT at a sample-weight to extraction-solution ratio of 1:8 was optimum for kafirin extraction.

蛋白浓度测定和SDS-PAGE电泳表明，DDT浓度为4%的60%叔丁醇溶液，样品质量比提取剂用量为1：8是提取高粱种子醇溶蛋白的最佳条件。

MethodsUsing single factor experiment and orthogonal design,the effect of temperature, extraction time, concentration of NAOH and ratio of solid to liquor on the extraction of Ligusticum chuanxiong Hort polysaccharide were studied.

目的研究碱法提取川芎多糖的最佳工艺条件。方法采用单因素实验和正交设计研究温度、时间、氢氧化钠溶液浓度、料液比对川芎多糖提取的影响。

Propolis ; Ethanol extraction ; CO_2 Supercritical extraction ; Bacteriostatic circle ; High lipoidemia

蜂胶；乙醇浸出提取； CO_2超临界提取；抑菌圈；高血脂

First, this research developed a set of simple and effective technologies for preparative extraction and separation of flavonoid and phloridzin from Lithocarpus polystachyus, which includes:(1) Microwave-assisted extraction of flavonoid f...

本研究首先研发出一套简单、有效的制备性提取分离多穗柯黄酮类及其根皮苷工艺，这套工艺包括：(1)微波辅助氢氧化钙水溶液提取多穗柯黄酮，最佳工艺条件为用1.2 %氢氧化钙水溶液为提取液，料液比1：12，预煮时间5min，微波功率800W处理25min。

The studies on the developing of new media are very important to the increasing of the area density of HDD and to the implementation of hybrid recoding technology.

光磁混合记录方法，是一种可以突破超顺磁极限的限制，并进一步提高硬盘记录密度和读写速率的一种新型超高密度信息存储方式。

In io, mTOR inhibition promotes T cell anergy under conditions that would normally induce priming.

体内研究中，在正常可激发免疫反应的条件下，抑制mTOR可促使T细胞无能。