查询词典 phenol-phthalein

Aniline、phenol and other presented organic reductants are basic materials of organic chemical industry and easy to obtain, so the presented organic—reducing leaching processes have great prospects of practical use.

由于本文研究的苯胺、苯酚等有机还原剂是来源广泛的基本化工原料，因而有机还原浸出方法具有广阔的实际应用前景。

The process involves the production of quinones by the catalytic oxidation of phenol which then polymerize to form melanins which are dark, high molecular weight insoluble polymers.

果汁加工过程中苯酚催化氧化形成苯醌，然后聚合形成黑色素。黑色素是一种不能溶解的高分子量聚合体。

An improved method that facilitates the extraction of PCR-compatible faecal DNA from giant panda\'s faeces is described. The method involves a novel preprocessing step in DNA extraction. The faeces is washed two or three times with precooled acetone, which removes numerous potential PCR inhibitors, and then digested with proteinase K. The DNA is purified with phenol/chloroform.

在粪便DNA的提取过程中采用一个新的预处理方法，将粪便用预冷的丙酮洗2～3次，除去粪便中含有的大量PCR抑制物，然后蛋白酶K裂解、酚-氯仿抽提，能提取到纯度很高的DNA供PCR扩增。

Objective To select efficient strains of degradation phenols to provide the biodegradation methods for Phenol environment-pollution control.

目的 选育高效降解苯酚菌株，为环境酚污染的治理提供生物降解方法。

The preparation procedures were optimized by orthogonal test L9（34） with the mean particle size and the amounts of total-phenol as indexes. Factors of the extraction pressure and temperature,diameter of nozzle, pre-expansion temperature were evaluated for their effects on preparation process.

以平均粒径、厚朴酚、和厚朴酚的总酚含量为考察指标，采用L9（34）正交实验，对影响RESS制备厚朴纳米液的因素（萃取温度、萃取压力、喷嘴孔径、预膨胀温度）进行优选。

The electrochemical properties of the MWCNT/GCE were investigated with cyclic voltammetry. Electrocatalytic oxidations of phenol, catechol and hydroquinone at the sensitivity of the were also studied further.

并用伏安法分析了电极表面MWCNT在B-R缓冲溶液中的电化学行为，在此基础上着重研究了苯酚、邻苯二酚和对苯二酚在MWCNT/GCE上的电催化氧化。

Peroxidases and phenol oxidases are the key enzymes in this process.

参与脱氯的关键酶系主要包括过氧化物酶和酚氧化酶。

And the phenol extraction is a propriety procedure for extraction proteins from aqueous phase. Based on the well-resolved 2-DE patterns, our protein preparation is free of interfering compounds.

使用此方法制备的蛋白质样品进行双向电泳，所得图谱背景清晰，蛋白质点分离效果良好，可有效分离蛋白质点3662个。

By means of FTIR, the cellulose of walnut shell was liquefied and degraded under acid catalyst in the presence of phenol firstly.

以傅里叶红外光谱为分析手段，研究以苯酚为溶剂、酸催化条件下核桃壳纤维素降解过程中其主要化学基团特征随反应时间的变化。

Modern medicine to prove: camellia oil rich in oleic acid, and linoleic acid and linolenic acid content of the proportion is also larger and reasonable, and tea oil contains olive oil does not have a specific physiologically active substances, such as: camellia saponin, camellia saponin, tea polyphenols phenol, etc., including: the role of camellia glucoside has a strong heart, camellia saponin with thrombolytic effect, and tea polyphenols have lower cholesterol levels, the chemical prevention of cancer and many other effects, can prevent various cardiovascular and cerebrovascular diseases; Moreover, tea oil free can cause human carcinogen aflatoxin, as well as erucic acid, saponin, and gossypol and other harmful substances, the elderly can benefit from the consumption of tea oil, tea oil is therefore referred to as longevity oil.

现 代医学证明：山茶油中富含油酸，并且亚油酸、亚麻酸含量比重也较大且合理，茶油中含有橄榄油所没有的特定生理活性物质，如：山茶甙、山茶皂甙、茶多酚等，其中：山茶甙有强心作用，山茶皂甙有溶血栓作用，而茶多酚具有降低胆固醇、化学预防肿瘤等多种作用，能预防各种心脑血管疾病；而且，茶油不含可引起人体致癌的黄曲霉素以及芥酸、皂素和棉酚等对人体有害的物质，老年人可因食用茶油而得益，所以茶油被称为&长寿油&。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。