查询词典 purification

Objective: To investigatre appropriate macroporous resins and the optimal technological parameters of the purification process of tartary buckwheat total flavonoids.

中文摘要：目的：筛选分离苦荞总黄酮精制的最佳树脂型号及最佳工艺。

Until now, studies about polysaccharide from tartary buckwheat are few in china. This paper was mainly about the method of purification of the polysaccharide from tartary buckwheat, and it also analyzed the physiological functions of the purified fraction of the crude polysaccharide.

目前国内对苦荞多糖的研究较少且不够深入，本论文以苦荞麦麸为原料进行多糖的分离纯化，并对粗多糖的纯化组分进行分析以研究其生理功能。

The absorbing rate remained unchanged in some time. It was confirmed that the reclaimed water can be used for the effective purification of tenter frame exha...

用循环水对染整定型机废气喷淋洗涤，在一定时间内有较高的净化效率，并且可以降低水的消耗量，同时有效减少二次污染的产生。

Purified degree of flavonoids was 78. 21 %. Purification of terpene lactones was improved without losing activity.

经分析检测，黄酮类化合物产品的纯度达到78.21％，萜内酯类化合物的纯度达到12.64％，且保持了较好的生物活性。

The preparation and purification process of silicon tetrachloride were chiefly introduced.

重点介绍了四氯化硅的制备及精制工艺。

Thermolysis of DM-DMI bis-carbamate was carried out in 3wt % solution of diphenyl ether at 254℃ for 5-6 hours, and the yield of DM-MDI is 61％ after purification.

而在第二步骤的热裂解反应中，在3wt ％二苯醚溶液中，控制反应温度在254℃，经反应5-6小时即得到DM-MDI，经浓缩及纯化后主产物之产率为61％。

This transformation is inherently slow (4 days), and as such, the thiophenol employed in slight excess undergoes partial air oxidation to give Ph 2 S 2 that coelutes with- 8 , making purification in our first-generation sequence difficult.

这个转变是根本不慢11(4天)，因此，经历了硫受雇于稍微超出部分空气氧化给予收盘22pH值与coelutes8，净化我们的第一代序难。

In this dissertation, firstly, the conditions of isolation and purification of specific toxin fractions produced by Exserohilum turcicum has been studied, and a high-efficient method has been established;secondly, the toxins were analysed by UV-Vis spectrophotometry;then the effect of specific toxin on death rate of corn leaves protoplast was studied by FDA as a tinct reagent;finally, using ANS as a probe and SDS-PAGE to study the membrane protein of the corn leaves with Htl gene. In a word, the aim of the research is to search some existent evidences of the toxin binding site on protoplasmic membrane, and provide proofs for nosogenesis of specific toxin in terms of cytology and the molecular biology.

本研究对玉米大斑病菌1号小种毒素的特异性组分进行分离，建立了高效的特异性毒素分离纯化方法，并对其进行了紫外波谱分析；用荧光素双醋酸酯染色法，测定了毒素特异性组分对原生质体死亡率的影响；进而用1-苯胺基-8-萘磺酸荧光探针标记法和SDS-PAGE电泳法对特异性毒素组分与Htl基因玉米细胞互作过程中的质膜蛋白进行了研究，旨在证明Htl基因玉米细胞质膜上存在特异性毒素组分结合蛋白，为从细胞和分子生物学角度阐明毒素的致病机理提供证据。

We are an independent development and production of the Product has:"êêpeace," the discharge of fireworks safety series; automatic monitoring stations to protect God; Toll gate air purification system ; and so on.

我们独立开发生产的产品有："岁岁平安"烟花爆竹安全燃放器系列；自动监测站保护神；收费站空气净化系统；等等。

In Xiamen Tongan Industrial Concentration Area purchase more than 2000 square meters 10000 purification plants, in strict accordance with the ISO9001 quality management system certification, ISO14001 environmental management certification requirements to operate to ensure that customers demand.

在厦门同安工业集中区购置两千多平方米万级净化厂房，严格按照ISO9001质量管理体系认证、ISO14001环境管理认证要求进行运作，以保证客户之需求。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。