查询词典 phenol-phthalein

The result indicates that under the both two circumstances,the course of the strain of bacteria degrading the phenol is accord with the Monod model.

结果表明，在两种情况下，该菌种降解苯酚的过程均符合Monod模型。

In this paper we study the biodegradation of petroleum wastewater by microorganisms with a new way.For the chain alkyl hydrocarbon in crude oil, strains were isolated by screening and acclimatizing at the existence of diesel oil and kerosene. For the aroma hydrocarbon in crude oil, strains were isolated by screening and acclimatizing at the existence of phenol.

本试验我们针对石油中的链烷烃，分别以柴油和煤油为代表物进行筛选得到以降解链烷烃为主的菌种：针对石油中的芳香烃，以苯酚为代表物进行筛选得到以降解芳香烃为主的菌种：针对石油中的环烷烃，以环己烷为代表物进行筛选得到以降解环己烷为主的菌种。

000 Mg/L phenol and 200 mg/L 4-cp were biodegraded within 51 h by cells immobilized in activated carbon integrated hollow fiber membranes, while it took about 88 h without activated carbon.

在膜的制作过程中添加了一定量的活性炭后，发现膜对苯酚和四氯苯酚的吸附能力增强，同时结构上更疏松，对四氯苯酚的降解效率得到了提高。

Besides, the effect of calcining temperature and content of dopants on the photocatalytic activity is also studied by decomposing phenol.

这些不利因素均使TiO〓光催化氧化技术在水处理的实际应用中受到限制。

The effects of various operational conditions on the activity of surfactant-coated lipase for catalyzing the transesterification of DMC and phenol were investigated in detail.

环氧丙烷改良的表面活性剂包衣脂肪酶在催化酯交换合成DPC的反应中表现出良好的活性和选择性。

The interactions between phenol,m-cresol or catechol with DNA sensor were analyzed, results indicated that the threephenols damaged DNA.The direct oxidation peaks of DNA were decreased linearly withthe phenols concemtrations.R%D_(50) values showed that the m-cresol damnified DNA mosteasily.

研究了苯酚、间甲酚和邻苯二酚与DNA的作用，结果表明其对DNA有损伤作用，且存在剂量效应关系，一定浓度范围内，DNA的峰电流与酚的浓度呈线性下降关系。R％D_(50)值分析结果表明这三种酚污染物中间甲酚最容易损伤DNA。

The main intermediates were detected during decomposition,such as acetic acid,oxalic acid,malonic acid,phenol,3-hydroxyhypnone,naphthalene,benzene sulfonic acid,phthalic acid,β-naphthalene etc . by ultraviolet-visiblespectroscopy,ion chromatographand gas chromatograph coupled with mass spectrophotometertechniques.The possible degradation pathway of Acid Orange Ⅱ was also speculated,that was,hydroxyl radical reacted with the azo linkage-bearing carbon of naphthol-ring,and the C—N cleaved,the azo-dye decolored and mineralized.

运用紫外光谱、离子色谱、色谱-质谱联用等方法，测定出酸性橙Ⅱ的主要降解产物有乙酸、乙二酸、丙二酸、苯酚、3-羟基苯乙酮、萘、苯磺酸、邻苯二甲酸、β-萘酚等，并依此推测酸性橙Ⅱ的降解机理，即羟基自由基攻击酸性橙Ⅱ分子上与萘环相连的C—N键，导致C—N键的断裂，进而染料脱色矿化。

Antibacterial deodorizes : The bamboo coal's charcoal structure is compact, the proportion is big, the holes are many, the mineral substance content is rich, therefore has the very strong adsorption resolution capability, to the air sulfide, the nitride, the methyl alcohol, the benzene, the phenol, the chloroform and so on organic pollutant or the harmful chemical substance, can display the outstanding absorption and disappear the smelly function.

六：抗菌除臭：竹炭的炭质结构非常致密、比重大、孔隙多、矿物质含量丰富，因此具有很强的吸附分解能力，对空气中的硫化物、氮化物、甲醇、苯、酚、三氯甲烷等有机污染物或有害化学物质，均能发挥优异的吸收和消臭功能。

Extracted DNA by CTAB, in proportion to the additions of PVP and β-mercap toethanol to the extraction buffer were capable of preventing browning from taking place in the extraction, Tris-Phenol (Stabilized with 0.1M Tris, pH 8.0)/Chloroform/isoamyl alcohol were used to remove protein and impurity in the second extraction, during crude DNA used to Isopropanol DNA and deterged by DNA detergent, without using RNase remove RNA, we detected the quality and concentration of DNA respectively for normal leaves and drought stress leaves by Agarose gel electrophoresis of genomic DNA and ultraviolet spectrometry photo.

用20%聚乙二醇(polyethylene glycol，PEG6000)模拟干旱，采取CTAB提取缓冲液，按一定比例加入PVP和β-巯基乙醇，用Tris平衡酚－氯仿－异戊醇除去蛋白质及杂质，在粗提时用异丙醇沉淀DNA，并用DNA洗液（10mmol/L醋酸铵，75%乙醇）洗涤DNA，在纯化时用乙醇沉淀DNA，且没有加入RNase去除RNA的方法，分别提取2个品种正常和干旱胁迫的苹果属叶片总DNA，并对提取的DNA进行琼脂糖凝胶电泳和紫外分光光度计检测。

In the step of esterification, dehydration of boric acid and then esterifying with phenol were carried out in order to increase conversion of esterification. Effect of reaction temperature, consumption of boric acid, kinds and consumption of dehydrolating agent on the yield of esterification was studied. The experimental results showed that high conversion of 98% of esterification was obtained.

本实验将酯化反应分解为脱水反应步骤和酯化反应步骤，以便提高酯化反应收率，同时，考察了反应温度、硼酸用量、带水剂种类及用量对酯化反应收率的影响，实验结果表明，该步反应条件简便易操作，反应转化率达98%。

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。