查询词典 phenol-phthalein

In the three methods, the improved Guanidine HCl method and the Trizol method could prepare high quality and quantity RNA while the result of the hot phenol method was not good.

结果表明：3种方法中，改良的盐酸胍法和Trizol法可以提取到高质量的RNA，热酚法的提取效果不理想。

Other researchers also focused on mixing phenol and formaldehyde, which turned into a sticky mess of gunk.

其他研究人员还集中在混合苯酚和甲醛，但只弄得粘粘糊湖的一摊烂泥。

Based on the established synthetic processes for polymeric HALS, two novelpolymeric high molecular weight and multi-functional stabilizers with hindered amineand hindered phenol as active groups together were designed in order to attain lightstability and antioxidant functions.

在聚合型HALS合成工艺已建立的基础上，本文又设计了两个同时含有受阻胺和受阻酚活性基团的新型多功能聚合型高分子量稳定剂，预期它同时具有抗光氧化和抗热氧化的功能。

In acidic condition, the extractive form waste water in hardboard production reacts with extra amount of formaldehyde at 1-5∶1 (formaldehyde : solid extractive, based on weight) to prepare extractive-formaldehydecomplex, then urea or phenol is added into the solution of this complex and reacts with unreacted formaldehyde to form a new adhesive system.

利用纤维板生产中废水提取物与过量甲醛(甲醛溶液与粉状废水提取物的重量比为1～5：1)在酸性条件下可制成纤维板废水提取物-甲醛复合体，此种复合体反应液中的过量甲醛再用尿素或苯酚吸收，从而制成尿素改性纤维板废液胶。

The catalytic activities of some coordination polymers in synthesis of DPC from oxidative carbonylation of phenol were investigated. Palladium complex Pd(C_2O_4)·0.5(C_4H_8N_2) has better catalytic activity in the typical reaction condition, it was synthesized with PdCl_2, oxalic acid and piperazine hexahydrate by solvothermal method under low temperature and characterized by IR, EA and TG.

以一些配位聚合物作为主催化剂考察它们在苯酚氧化羰基化生成碳酸二苯酯反应中的催化活性，经过比较，筛选出配位聚合物Pd(C_2O_4)·0.5(C_4H_8N_2)(在低温条件下以溶剂热法合成)，采用IR、TG，EA和比表面分析技术对它进行了表征。

It is conceivable that other phenol-like molecules could also be used to enhance the stability of the hexameter in solution, leading to range of insulin preparations of increased stability.

依此类推，其他许多类苯酚分子都可以用来增强胰岛素六聚体在溶液中的稳定性，制备长效胰岛素试剂。

The carbon fiber precursors were prepared from liquefied wood in phenol by adding hexamethylenetetramine and soaking in the solution containing hydrochloric acid and formaldehyde as the main components.

以木材苯酚液化物为原料，加入六次甲基四胺熔融纺丝后，经甲醛和盐酸溶液固化处理、炭化后得到木材液化物碳纤维。

Often referred to by the phenol or its homologue, and the role of formaldehyde derived liquid or solid products.

通常指由苯酚或其同系物和甲醛作用而得的液体或固体产品。

The orange osmanthus skin-traditional Chinese medicine being taken as raw material, the active ingredient-phenol was extracted with the method of steam distillation and then the derivative of paeonol-aminoethanol and 2,4-dinitrophenyl hydrazone was synthesized. The structural characterization of the derivatives carried out was identified and the test in the anti-bacterial role of three kinds of gram-negative and positive bacteria was done with the method of agar diffusion.

方法］以丹皮为原料，用水蒸气蒸馏法从中药丹皮中提取活性成分丹皮酚，进而合成丹皮酚缩乙醇胺和2，4-二硝基苯腙衍生物，对衍生物进行了结构表征，并采用琼脂扩散法，对3种革兰氏阴性菌、阳性菌进行了抑菌性试验。

Tianrun company's existing 120 employees, of whom 15 were engineers, 3 senior engineers who enjoy special government allowances of experts one person, the company brominated long-term commitment to new product research and development, with a full range of laboratory facilities, laboratory room, to carry out most of bromine series products, small-scale test, pilot and laboratory experiments, subjects are as follows: high-quality three-bromo-phenol in the test, hydrogen bromide by-product utilization in the test, 1,000 tons of bromine dodecane-generation pilot project.

天润公司现有职工120余人，其中工程技术人员15人，高工3人，享受省政府特殊津贴专家1人，公司长期致力于溴系新产品的科研开发，拥有设施齐全的实验室、化验室，能够进行大部分溴系列产品的小试、中试实验及化验，现正进行的课题为：高品质三溴苯酚的中试，副产溴化氢的综合利用中试，1000吨溴代十二烷项目中试。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。