醇盐
- 与 醇盐 相关的网络例句 [注:此内容来源于网络,仅供参考]
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We also found the time when the glucose was added into the medium greatly affected the expression level of the recombinant immunotoxin.
本文报导了利用山梨醇、甜菜碱等相容性溶质,在高盐胁迫下,实现了重组免疫毒素在大肠杆菌周质腔中的可溶性表达。
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The method is characterized in that:(1) the reflux of the 2-[N, N- 2amino]-3-cyano-group-4-thiopheneacetic-5-carboxylic acid tetra ester is carried out in the proper sodium hydroxide aqueous solution of alcohol for 5h to 6h and the pH value is kept over 10 during hydrolysis;(2) the ethanol of 20 per cent to 60 per cent is added and then the strontium chloride aqueous solution with 2times to 2.5times molal weight is directly added, precipitates the crystal, is filtered and dried;(3) water is added to carry out the reflux and the little salt packed in the crude product is removed, and the product is collected through heat filtration.
其特征在于:①将2--3-氰基-4-羧甲基噻吩-5-羧酸四酯在适量氢氧化钠水醇溶液中回流5~6小时,水解过程保持pH值10以上;②然后再加入20-60%乙醇,随后直接加入2-2.5倍摩尔量氯化锶水溶液,析出结晶,过滤,晾干;③加水回流,除去粗品中包裹少量盐,热过滤,收集产品。
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The synthesis of dimethyl fumarate was studied from maleic anhydride and methanol with phospho molybdic acid as the catalyst and bromate as the isomerization catalyst by one-step in this short paper.
采用固体杂多酸磷钼酸为催化剂,溴酸盐为异构化剂,经顺酐一步合成了富马酸二甲酯,探讨了醇酐比、反应时间、催化剂的量、异构化剂的量以及异构化时间对合成DMF收率的影响,并确立了最佳反应条件。
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is that zinc acetate, sodium acetate and transition metal salt are dissolved in ethylene glycol monomethyl ether as precursor; then ethanol is added as stabilizer; after stirring, the stable sol is formed.
将醋酸锌、醋酸钠和过渡金属盐作为前驱物,溶于乙二醇甲醚中,并加入乙醇胺作为稳定剂,搅拌后形成稳定的溶胶。
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Polyethylene glycol ethers of alkyl alcohols having the general formula CH3(CH2)xCH2(OCH2CH2)nOH wherein x is 8 to 20 (of which ceteareth-20, steareth-20 and steareth-100 are preferred), poloxamer 185, poloxamer 407, N,N-dimethyl dodecylamine N-oxide, and mixtures thereof, are employed to increase follicular delivery and/or follicular residence time of certain water soluble ornithine decarboxylase inhibitors of which 2-2,5-diamino pentanoic acid and its pharmaceutically acceptable salts, hydrates, optical enantiomers and racemic mixture are preferred.
使用通式为CH3(CH2)xCH2(OCH2CH2)nOH的烷基醇的聚乙二醇醚,其中x为8-20(其中鲸蜡硬脂醇醚-20、硬脂醇醚-20和硬脂醇醚-100是优选的)、poloxamer 185、poloxamer 407、N,N-二甲基十二烷胺N-氧化物及其混合物来提高某些水溶性的鸟氨酸脱羧酶抑制剂的毛囊传输和/或毛囊停留时间,优选的抑制剂是2--2,5-二氨基戊酸及其药学上可接受的盐、水合物、光学对映异构体及外消旋混合物。
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Kosmotropes are stabilizing solutes which increase the order of water (such as polyhydric alcohols [ 307 ], trehalose, trimethylamine N -oxide, glycine betaine, ectoine, proline and various other zwitterions) whereas chaotropes create weaker hydrogen bonding, decreasing the order of water, increasing its surface tension and destabilizing macromolecular structures (such as guanidinium chloride and urea at high concentrations).
这是稳定增长kosmotropes溶质水秩序(如多元醇〔307〕、海藻糖、甲胺氮氧化物、甜菜碱、ectoine,脯氨酸和其他各种盐)而创造chaotropes氢键较弱,为了减少用水,增加其表面张力和大分子结构不稳定。
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Bicyclic compounds containing a phenyl or pyridyl ring fused to a cycloalkyl or heterocyclic ring, to which is attached a 5-membered heterocyclic ring, including pharmaceutically acceptable salts and prodrugs thereof, are agonists of G-protein coupled receptor 40 (GPR40) and are useful as therapeutic compounds, particularly in the treatment of Type 2 diabetes mellitus, and of conditions that are often associated with this disease, including obesity and lipid disorders, such as mixed or diabetic dyslipidemia, hyperlipidemia, hypercholesterolemia, and hypertriglyceridemia.
本发明涉及含有连接在5元杂环上的稠合至环烷基或者杂环的苯基或者吡啶基环的二环化合物,包括其药学上可接受的盐和前药,它们是G蛋白偶联受体40(GPR40)激动剂并且可以用作治疗性化合物,特别是在2型糖尿病和与这些疾病相关的症状中用作治疗性化合物,这些症状包括肥胖病和脂质疾病,比如混合或者糖尿病型血脂异常症、血脂质过多、高胆甾醇血和高甘油三酯血症。
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Thus it is presented an effective RNA extraction method based on the nuclease adsorbent macaloid, poly vinyl pyrrolidone, and high concentration of KAc and ethylene glycol monobutyl ether, which has successfully extracted high-quality RNA from many materials difficult to RNA isolation, such as RNase-rich rabbit liver, plant and microbial tissues rich in polysaccharides, lipids and polyphenol compounds.
现利用硅藻土对RNase的吸附性,结合PVP、高盐及乙二醇丁醚沉淀等处理,建立了一种广泛适用的RNA提取方法。在富含多糖的玉米胚乳,富含RNase的动物肝脏,多酚多油脂的银杏、麻疯树以及木霉、酵母等10多种RNA提取困难的动、植物与微生物材料中都提取出完整性好,得率高的RNA。
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If the base was added again to above solution until pH≥13, the resinoid substance was separated from it.
以分光光度法,于740 nm波长下测定含0.98%正丁醇的0.5%PVA与铜盐组成的(pH=10)不同浓度(5~50 mg CuCl_2·2H_2O/100 ml)的水溶液吸光度,并对CuCl_2·2H_2O摩尔浓度作图,它遵守朗伯—比耳定律。
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Dioctyl sebacate was prepared by esterification of 2 ethylhexyl alcohol and sebacic acid in catalysis of aluminate.
以癸二酸与2-乙基己醇为原料,铝酸盐为催化剂,合成了癸二酸二辛酯。
- 推荐网络例句
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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)。
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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%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。