相比目前使用的水或甲醇溶剂纯化收率30％，发现以丙酮、乙酸、水的溶剂体系，精制更昔洛韦收率可显著提高到83.3％，高效液相色谱（HPLC）分析，产品纯度达到99.0％以上。
Ganciclovir could be purified to more than 99.0%(HPLC) by a combination of acetone, acetic acid and water in 83.3% recovery as compared with 30% one when using water or methanol as solvent.
确立了以有机溶剂提取海藻中的生长素，以乙醚萃取法和柱层析法对生长素进行分离纯化的方法。
The method of extracting the auxin in seaweeds with organic solvent, separating and purifying the auxin by ether extraction method and column chromatography has been established.
超声技术可以缩短提取时间，溶剂易回收，有利于下一步鞣质的分离纯化及更深度的研究。
The ultrasonic extraction can be done in a shorter time, and its solvent is easier to recycle, which is conducive to further separation or purification of tannin or making further study on it.
目的研究极性有机溶剂辅助阴、阳离子交换色谱串接组合纯化蛋白质的可行性。
PurposeTo explore the possibility of combination of anion and cation exchange chromatography by using the polarity organic solvents in eluent.
研究这类盐—混合溶剂体系既可以丰富溶液化学，而且对盐类的分离制备和纯化具有重要的实际意义。
The study of salt and mixed solvents not only enrich solution chemistry, but also possess important significance to separation preparation and purification of salt.
反胶束萃取技术具有条件温和，萃取效率高，成本低，溶剂可重复利用，不引起萃取物变性等优点，用于纯化生物物质前景广阔。
The use of reversed micelle in extraction of biological molecules has the advantages of mild operational conditions, high extraction efficiency, low cost and solvent recycling.
通过对黑荆树皮单宁进行醇沉纯化和溶剂萃取分级，可得到分子量分布范围不同的单宁级分。
Tannin fractions with different molecular weight distributions were obtained by purification of alcohol precipitation and fractionation of solvent extractions of black wattle bark tannins.
葡萄籽经有机溶剂梯度法及酶法提取，大孔树脂初步纯化，薄层色谱法分离纯化得到原花青素单体和二聚体。
The monomer and dimer of proanthocyanidins in grape seeds were obtained by gradient and enzymatic extraction, isolation with macroporous adsorption resin, and purification by TLC.
反胶束萃取技术具有条件温和，萃取效率高，成本低，溶剂可重复利用，不引起萃取物变性等优点，用于纯化生物物质前景广阔。
It has a promising profit that extraction of biological molecule by reversed micellar, for the more mild operational condition, higher extraction yield, lower cost and solvent recycling.
通过对溶剂、提取次数、碱化条件的选择，用离子交换和重结晶的方法提取纯化氧化苦参碱。
Through selecting extracting solvent, extracting times and alkalinizing method, Oxymatrine is extracted and purified by ion-exchanging and re-crystallization.
再采用顶空气相色谱法检测所得苹果多酚纯化物中正己烷、苯、甲苯、对二甲苯、邻二甲苯、苯乙烯等有机溶剂残留均低于检测限。
There were not n-hexane, benzene, toluene and xylene, o-xylene, styrene and other organic solvent residue in the purification of apple polyphenol by the headspace gas chromatograph.
本文报道采用分级分离并结合有机溶剂沉淀法，从牛眼中纯化出高纯度透明质酸，较其他方法简便，易形成规模。
This paper deals with the way of purifying highly purity hyaluronic acid from ox eye by fractionation and organic solvent precipitation.
并以溶剂萃取法对烟碱粗制品纯化，以烟碱和软脂酸的成盐反应精制烟碱。
The unrefined nicotine was purified using solvent extraction and the nicotine was refined by a salification reaction of nicotine and palmitic acid.
方法考查单体的制备与纯化、溶剂残余量、聚合方式、引发剂用量、聚合时间、聚合温度等因素对聚合的影响。
METHODS Various influencing factors in the preparation of PLA were studied, such as the purity of monomer, the polymerization temperature, and the quantity of the initiator.
将有机溶剂抗溶剂与高压气体等电沉淀技术结合起来，提出了一种新的蛋白质纯化方法。
A novel method for protein purification was presented, which was the integration of organic antisolvent and compressed gas isoelectric precipitation.
方法：用纯净水提取，溶剂萃取，大孔吸附树脂和硅胶柱色谱分离等方法分离并纯化亚麻根的微量成分，通过波谱分析鉴定化合物的结构。
Method: Isolation and purification of the trace constituents were carried out mainly by solvents extraction and macroporous adsorbing resin and silica gel column chromatography.
采用溶剂提取和柱色谱法分离纯化市售大豆粉末磷脂（卵磷脂含量14.05%），得到高纯度的卵磷脂产品（纯度92.80%）。
Phosphatidylcholine of high purity(PC, content 92.80%) was prepared from market soybean power phospholipids(PC content 14.05%) by using solvent extraction and column chromatography.
结果：以60%丙酮为溶剂进行提取，以乙酸乙酯为溶剂进行纯化，鞣质纯度可达到75%左右，且重复性较好。
Results: the purity of tannins can be as high as reach 75% when it's extracted with 60% acetone and purified with ethyl acetate, and the process has good reproducibility.
萃取分配系数D测定结果表明，醋酸乙酯是纯化绿原酸的适用溶剂。
The distribution coefficient D indicated: Ethyl acetate was the most suitable extractant for CGA s purification.
只需要检测在合成或纯化药物有效成分、赋形剂和医药产品的过程中使用或产生的溶剂。
Therefore, testing should be performed for residual solvents when production or purification processes are known to result in the presence of such solvents.
高纯甲醇是一种大量应用于化学及微电子工业领域中的重要溶剂，脱水是工业甲醇纯化精制过程中的一个关键问题。
High purity methanol is one of the very important solvents for chemical industry and microelectronic industry. Dehydration is the key process in the purification of industrial methanol.
纯化的重组蛛丝蛋白经透析、冷冻干燥后，以98%甲酸为溶剂，制备丝蛋白溶液。
The silk fibrous protein solution was prepared by dissolving the recombinant spider silk protein in 98% formic acid after dialyzed and lyophilized.
以乙醇为溶剂，用重结晶方法纯化胆固醇。
Besides, the cholesterols were purified by recrystallization.
表面活性剂作为增溶剂广泛应用于LH2的分离纯化、重构和结晶，阐明表面活性剂对LH2的影响非常重要。
Surfactant as solvent widely used in purification, reconstruction and crystallization of LH2. It is very important to reveal the effect of Surfactant on structure and function of LH2.
表面活性剂作为增溶剂广泛应用于LH2的分离纯化、重构和结晶，阐明表面活性剂对LH2的影响非常重要。
Surfactant as solvent widely used in purification, reconstruction and crystallization of LH2. It is very important to reveal the effect of Surfactant on structure and function of LH2.
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