提纯 是指将混合物中的杂质分离出来以此提高其纯度。提纯作为一种重要的化学方法,不仅在化学研究中具有重要作用,在化工生产中也同样具有十分重要的作用。不少重要的化学研究与化工生产,都是以提纯为主体的。词条详细介绍了常见的物理、化学提纯方法。
n. purification ; refinement
...细胞中是以复杂的混合物形式存在,每种类型的细胞都含有上千种不同的蛋白质,因此蛋白质的分离(Separation),提纯(Purification)和鉴定(Characterization)是生物化学中的重要的一部分,至今还没的单独或一套现成的方法能移把任何一种蛋白质从复杂的混合蛋白质...
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1,8-桉叶油素的研究进展(综述) 关键词:1,8-桉叶油素;提纯;研究进展 [gap=471]Key words:1,8-cineole; refinement; research progress
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Then ,a mixture containing nitrobenzene, m-NCB, p-NCB and m-NCB still remained. This essay will complete the reduction of mixed nitrobenzenes and separation of mixed amines.
经结晶提纯对硝基氯苯、精馏提纯邻硝基氯苯后会留有一部分间、对、邻硝基氯苯及硝基苯的混合物,本文围绕硝基苯与邻、对、间硝基氯苯混合物的还原及分离提纯进行了理论分析及实验室小试研究等工作,主要完成以下几项工作。
参考来源 - 混合硝基氯苯的还原及混合氯代苯胺的分离的研究This article had a research on the mutation and screening of aureobasidium pullulans with reduced pigmentation, optimization of medium and cultivation conditions, medium fermentation and the purification.
本文主要研究了低色素出芽短梗霉的选育、培养条件的优化、发酵罐验证实验和产品的分离提纯等。
参考来源 - 低色素出芽短梗霉的选育及其培养条件优化In this work, metal phthalocyanines, rare earth bisphthalocyanine (REPC2) with sandwich molecular structure and pyridine-perylenediimide (PPD) were synthesized and purified. The chemical structure and purity were characterized by fourier transform infrared spectroscopy, ultra violet-visible (UV-vis) spectroscopy, and elemental analysis.
本研究合成并提纯了金属酞菁、三明治型稀土酞菁和吡啶-苝酰亚胺,通过元素分析、紫外可见吸收光谱、红外吸收等手段对合成物质的化学结构及纯度进行表征。
参考来源 - 有机给体—受体异质结纳米有序复合光电材料Extraction, separation and purification techniques of tea polysaccharides were introduced. And its development trend of purification technique was forecasted.
介绍了茶多糖提取、分离和纯化技术,并展望了其提纯技术的发展方向。
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它们用提纯油、大蒜和红辣椒混合爆炒,再裹在墨西哥煎玉米卷里真是美味极了。
They are delicious stir fried with good oil, garlic and red pepper and served in a taco.
我们发现两个三能级原子系统存在发生可提纯性猝死的可能。
We find distillability sudden death may occur in such qutrit-qutrit system.
另一个问题是最终产品的提纯。
The other issue concerns the purification of final products.
They grew the virus in monkey cell cultures, they purified the virus because you got to get all the other stuff from the cells that you're growing it in a way, they inactivated it by treating it with formalin which is just a formula-- it's just a mixture of Formaldehyde; Formaldehyde cross links proteins.
研究人员将病毒种植在猴细胞内,进行培养,并提纯病毒,在某种程度上,通过这种方法,可以得到所有类型的病毒,研究人员用福尔马林,处理病毒,使其灭活,福尔马林就是甲醛的水溶液,甲醛可以使蛋白质发生交联反应
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