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- tetraphenyl guanidine 四苯胍
- Guanidine gum has better ability of temperature resistance and forming fissure. 清洁压裂液具有低污染、很强的抑制黏土膨胀能力、较强的携砂能力。
- A compound disinfectant contains chitin,lysozyme and polyhexamethylene guanidine as the germicidal components. 试验用复方消毒剂是以甲壳素、溶菌酶及聚六亚甲基胍等为杀菌成分。
- The conformational change courses in the different concentrations of guanidine have been to be first order reactions. 同时还测定了不同浓度胍溶液中人肌酶的失活与构象变化的速度常数。
- Orthogonal analysis was done about p-fluorophenyl guanidine carbonate and optimum synthesis conditions were obtained. 同时对合成对氟苯胍碳酸盐进行了正交分析,得出了最佳合成条件。
- MNDO calculations and group theory were carried out on tetraphenyl porphyrine(TPP) to obtain its optimum molecular geometry. 运用MNDO计算和群论,优化得到了较满意的中位取代四苯基卟啉(H2TPP)的分子构型。
- Performances of direct extraction of gold from alkaline cyanide solution with guanidine hydrochloride were studied. 研究了盐酸胍直接从碱性氰化液中萃取金的性能。
- This could give reason for aggregate formation of GAPDH in the presence of low concentration guanidine hydrochloride. 说明在低胍作用下,酶分子发生的构象变化,导致天然态内埋疏水面的暴露,暴露的疏水面间的相互作用是形成聚合的主要原因。
- Then the inclusion bodies were redissolved by 7 mol/L guanidine hydrochloride containing 10 mmol/L of DTT. 而稀释复性法是研究其它复性方法的基础,试验中先用含2 mol/L 尿素的0.;1 mol/L Tris-HCl 缓冲液对包涵体进行洗涤,然后用含10 mmol/L DTT 的7 mol/L盐酸胍溶解包涵体。
- METHODS To identify the component of prescription,absorption spectrometry and method of tetraphenyl boron sodium to quantitative analysis the active component were used. 方法对处方成分进行定性鉴别,采取紫外分光光度法、四苯硼钠法对有效成分进行定量分析。
- An investigation is also made on determining DMDAAC qualitatively by bromophenol blue test and quantitatively by tetraphenyl boron sodium precipitation reac... 用溴酚蓝对DMDAAC进行定性分析,用四苯硼酸钠及折光率法进行定量分析的方法进行了探讨。
- The renaturation of polyphenol oxidase from Tobacco denatured in 6 0 mol/L guanidine hydrochloride(GdnHCl) was investigated. 研究了盐酸胍变性烟草多酚氧化酶后的复性。
- Abstract : On the basis of guanidine thiocyanate method, an economical method of extracting and puring total RNA from Yunjie stigmas was established. 摘要 : 本文在常规异硫氰酸胍法的基础上,改进并确立了一种适合芸芥柱头总RNA的提取与纯化方法。
- So the flotation separation of diaspore against the aluminosilicates is feasible by using guanidine collector in high alkaline. 以十二烷基胍为捕收剂可望实现铝硅矿物反浮选分离;
- The method of synthesis guanidine nitrate from urea and ammonium nitrate in the presence of catalyst is discribed in this paper. 以尿素和硝酸铵为原料,在催化剂的存在下合成硝酸胍。
- The synthesis method and application in germicide, conditioner and catalyst of alkyl guanidine were introduced.The development direction was suggested. 介绍了烷基胍的合成方法及作为杀菌剂、头发护理品和催化剂等的应用,指出了烷基胍表面活性剂的发展方向。
- Usage One of the raw material to make herbicides,fungicides.It is used for producing Dicyandiamide Thiourea,Guanidine,etc. 用途 是生产除草剂、杀菌剂、杀虫剂等农药的原料之一,工业上用于生产双氰胺、硫脲、部分 胍盐等。
- Cartilage antuumor component (CATC) was isolated from a 1 mol/L guanidine hydrochloride extract of bovine cartilage by acetone fractioned precipitation and superfiltration. 采用盐酸胍抽提,丙酮分级沉淀,超滤等步骤从牛软骨中提取出软骨抗肿瘤组分(Cartilage antitumor component,CATC)。
- In the process of direct fluoration, tetraphenyl phosphonium bromide, potassium fluoride and sulfolane was used as catalyst, fluorating agent, and high boiling point agent respectively. 将对二氯苯用硝硫混酸硝化获得2,5二氯硝基苯,并以氟化钾为氟化剂,在四苯基溴化膦催化下于环丁砜等高沸点溶剂中直接进行氟化,经水蒸气蒸馏和分馏提纯获得产品。
- Six Quaternary Ammonium tetraphenyl borates salt photobase generators were synthesized with the use of p-methoxy phenacylmethylene or 2-naphthoymethylene as chromophore, and triethylene diamine, pyridine or 3-methyl pyridine as tertiary amine. 摘要以对甲氧基苯乙酮、萘乙酮生色团为母体、杂环叔胺三亚乙基二胺,吡啶,3-甲基吡啶和四苯硼盐为原料,合成了6种四苯硼季铵盐光产碱剂。