纯化的

The synthesis method comprises the following steps: adding 2-( 5-(dimethylamino methyl- 2- furyl methyl sulpho ethylamine and 1- methylthio- 1- methylamino- 2- nitro ethylene with a molar ratio of 1.04: 1 into water, heating to 48- 52 Deg. C, reacting 4.5 hours with a vacuum degree of 0.02- 0.05 MPa, cooling, adding sodium-hydroxide of concentration of 10% to regulate the PH value to 11.0- 11.4, filtrating and cooling the filtrate to 0- 2 Deg. C, crystallizing for 12 hours, centrifugally filtrating, and rinsing filter cake with purity water to prepare wet ranitidine alkali; dissolving ranitidine alkali in alcohol and reacting with chlorhydric acid to prepare ranitidine hydrochloride.

合成方法包括：将摩尔比为1.04∶1的2-(5-(二甲氨基甲基-2-呋喃基甲基硫代乙胺与1-甲硫基-1-甲胺基-2-硝基乙烯加入水中，升温至48-52℃，于真空度0.02～0.05MPa反应4.5小时，反应完毕降温，用10％氢氧化钠溶液调pH＝11.0-11.4，抽滤，滤液降温至0～2℃，结晶12小时，离心甩滤，用纯化水漂洗滤饼，得雷尼替丁碱湿品；将雷尼替丁碱溶于乙醇中与盐酸反应，制备得到盐酸雷尼替丁，产品符合欧洲药典标准。

A new type of separation and purification method for isolating puerarin was developed using chelate complex chromatography.

中文内容：摘要：建立了采用配位色谱柱从葛根素浸膏中分离纯化葛根素的方法。

The synthesized peptide was purified by the chromatograph and identified by mass spectrograph.

用色谱仪和质谱仪对合成的多肽进行纯化、鉴定。

Manual microdissection in the isolation and purification of ciliated cells, can reduce the interference of impure cells, increase the cell activity, and is a satisfied technique to offer pure cells.

将手工显微分离技术应用于纤毛细胞分离和纯化降低了杂质细胞干扰，提高了细胞活性，满足了提供纯净目的细胞的实验要求。

Separation and purification of Human-like collagen I and its functional properties were researched in this paper.

本文对类人胶原蛋白 I的分离纯化及其功能特性进行了研究。

High speed countercurrent chromatography was successfully used for the separation and preparation of isomeric compounds .

应用高速逆流色谱法对同异构体的分离纯化进行研究。

Continuous and countercurrent production can be realized by introducing simulated moving bed chromatography technology.

该文在无标样条件下对甘草甙的分离纯化进行了研究，并首次采用模拟移动床色谱技术提纯甘草甙。

Purpose To determine the experimental system of isolation and purification dl-tedrahypalmatine and protopine by high speed countercurrent chromatography.

目的 确定高速逆流色谱法分离纯化延胡索乙素和原阿片碱的条件。

In other words,the 3-series range will get its own version of the 5-series GT concept,BMW''s attempt to cross-pollinate an SUV and astation wagon.

纯化论者不用焦急，至少有一款六缸汽油机将会在这个减少尺寸到4缸的步履中被保留。

METHODS: Affinity column constituted by gelatin coupling with sepharose 4B activated with cyanogen bromide was used to purify fibronectin.

用明胶与溴化氰活化琼脂糖珠偶联的亲和层析柱对纤维蛋白结合素进行纯化。

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％。