查询词典 phenol-phthalein

Catalysts in three synthesis routes,the hydroxylation of 4-tert-butyl-phenol,the alkylation of pyrocatechol by tert-butyl alcohol and the alkylation of pyrocatechol by isobutene,were discussed in detail in terms of reaction conditions,catalysts,temperature,reaction time etc.

论述了对叔丁基苯酚羟基化法、邻苯二酚与叔丁醇烷基化法和邻苯二酚与异丁烯烷基化法生产对叔丁基邻苯二酚的合成路线的催化剂。

And 1. 0M respectively. BYS-1 could use anline, phenol and salicylic acid as substrate to support growth, but could not use catechol and quinol, it could use benzoic acid poorly.

BYS-1能耐受多种重金属离子，Zn〓，Cu〓，Ba〓，Mn〓对其降解苯乙酸没有明显的影响，Co〓和Cr〓对其降解稍有影响，Cd〓和Pb〓则抑制其降解。

Quinoline co-substrate biodegradation with other compounds such as glucose, phenol and pyridine were analyzed.

研究了喹啉与葡萄糖、吡啶、苯酚等物质共基质时的生物降解情况。

18 Patients with radioresistant NPC and 30 patients with radiosensitive NPC are included in the case-control study. Genomic DNA was extracted from peripheral blood lymphocytes by proteinase K digestion and phenol/chloroform extraction.

本研究旨在通过调查MDR1基因的单核苷酸多态性在鼻咽癌放射敏感和放射抵抗患者中的分布以及上述多态性对MDR1 mRNA在分具不同放射敏感性的三株细胞系内的差异表达的影响，探讨MDR1基因多态性与鼻咽癌放射敏感性的相关性。

The properties and mechanisms for repetitious sorption of phenol to organobentonites from water were studied.

研究了一系列有机膨润土多次吸附水中高浓度苯酚的性能及机理。

Respectively use chelex 100 resinate,boiling extraction,proteinase K digest/isopropanol precipitation,proteinase K digest/phenol/chloroformextra ction,alkaline lysis,guanidine thiocyanate lysis,guanidine hydrochloride lysis,spin column method to extract Mycobacterium tuberculosis DNA for multiplepolymerase chain eraction.

选择3份含结核分枝杆菌分别为4.325×103、6.857×104、5.356×105 Copies/ml的痰液，分别用Chelex 100树脂法、煮沸法、蛋白酶K消化异丙醇沉淀法、蛋白酶K消化酚/氯仿抽提法、碱裂解法、异硫氰酸胍裂解法、盐酸胍裂解法、离心柱法抽提结核分枝杆菌DNA作多重聚合酶链反应，显色法芯片检测结核分枝杆菌RFP和INH耐药基因。

Molar ratio of formaldehyde/phenol is one of important factors that affect the thermal properties of Resole resins and the mechanical properties of glassfiber-reinforced resins.

原料甲醛／苯酚比是影响Resole树脂固化产物热性能和玻纤复合材料力学性能的重要参数之一。

The recovery of resorcin and phenol is in the range of 99 4% 104 2%( n=25 ,RSD=1 1%) and 97 1% 102 8%( n=25 ,RSD=1 6%) respectively.

苯酚的回收率为99.4％～104.2％（n＝25，RSD＝1.1％），间苯二酚的回收率为97.1％～102.8％（n＝25，RSD＝1.6％）。

In this paper,the principle of a new absorbance ratio derivative method was described.The experimental methods of derivation with subtraction technique on ordinary spectrophotometer and simultaneous determination of phenol and resorcin were studied.The result is satisfying.

本文叙述了吸光度比值－导数光谱新方法的原理，研究了在普通分光光度计上用计算法完成吸光度比值导数运算、同时测定苯酚和间苯二酚含量的实验方法，取得了较为满意的结果。

A yeast strain was isolated from sesame flower and classified as Candida tropicalis, with phenol, resorcin and bengidine as the sole carbon and energy resource.

实验室分离的一株热带假丝酵母(编号为8953)具有较强的苯酚降解能力，并可以利用苯酚、间苯二酚、联苯胺等芳烃为唯一碳源和能源生长。

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。