对苯二酚

一阶导数-同步荧光分析法同时测定痕量的苯酚和对苯二酚

First Order Derivative-Synchronous Fluorimetric Method for Simultaneous Determination of Trace Phenol and p-Dihydroxybenzene

以壳聚糖为模板的对苯二酚氧化聚合反应表观动力学研究

An apparent kinetics study on the oxidative polymerization of p-Dihydroxybenzene using chitosan as template

对苯二酚氧化损伤DNA的电化学检测

Electrochemical Detection of the DNA Damage Caused by 1,4-Hydroquinone

叔丁基对苯二酚对亚砷酸钠致changliver细胞毒性的影响

Antagonism of Tert-butylhydroquinone to Sodium Arsenite-Induced Cytotoxicity in Chang Liver Cells in vitro

在油中的溶解性依次为：维生素E、特丁基对苯二酚、2,6-二叔丁基对甲酚、抗坏血酸、儿茶素；

Oil solubility decreased in this turn : Vitamin E , TBHQ , BHT ascorbic acid , catechin ;

采用一阶导数紫外吸光光度法在pH≤7时直接同时测定苯酚和对苯二酚。

Phenol and hydroquinone are directly determined at an acidity of pH ≤ 7 by the first derivative UV spectrophotometry .

等离子体诱变筛选降解高浓度对苯二酚的突变株及其降解特性研究框内缺失突变法构建变形链球菌comE基因突变株

Study on the Selection of the Mutants by Plasma Mutation and Its High Hydroquinone Degradation Character Construction of Streptococcus mutans comE Mutant Strain Using In-frame Deletion System

探讨了HPLC法同时分析水中苯酚、对苯二酚、间苯二酚和邻苯二酚混合物的条件。

The simultaneous analysis conditions of phenol , hydroquinone , hydroxyphenol and odi-hydroxybenzene mixture by HPLC were discussed .

纳米γ-Al2O3自水溶液中吸附除去对苯二酚的特性研究

Study on the properties of adsorption removel of paradioxybenzene from aqueous solution by nanometer γ - Al_2O_3

在HRP的催化下，H2O2将对苯二酚氧化成对苯醌。

At last , HRP catalyzed H2O2 to oxidize hydroquinone into p-benzoquinone .

Ge（Ⅳ）-邻苯二酚、间苯二酚、对苯二酚极谱配合吸附催化波的比较研究

Comparisons in Polarographic Adsorptive Complex Waves of Ge (ⅳ) - Catechol , - Resorcin , and-Hydroquinone

对苯二酚显影过程产物醌氢醌吸附在Ag胶上的紫外-可见吸收光谱及SERS研究

UV-Vis absorption spectra and SERS spectra of quinhydrones adsorbed on silver sol in the developing process of hydroquinone

转化率和对有价值的邻苯二酚和对苯二酚产物的选择性进行了考察，结果发现它们与反应时间，温度，pH以及底物和氧化剂的比例有关。

The con-version and selectivity into valuable products , catechol and hydroquinone , were investigated in function of time , temperature , pH and substrate to oxidant ratio .

合成了一系列Si／Fe比不同的FeS－2分子筛，用于进行H＿2O＿2和苯酚羟化反应合成邻苯二酚对苯二酚。

A series of FeS-2 zeolites with different Si / Fe ratios are synthesized . These zeolite catalysts are used for hydroxylation of phenol by hydrogen peroxide .

并研究了这两种衍生物对水中对苯二酚的吸附性能，考察了不同吸附剂、温度、pH值等因素对吸附量的影响，并将其吸附性能与同条件下的壳聚糖加以比较。

The adsorption properties of the both sorbents for p-dihydroxybenzene under different conditions were studied . The effects of temperature and pH on the adsorbing capability of the two modified chitosans were studied .

在NADH脱氢酶存在下，NADH可将对苯醌还原为对苯二酚。

Quinone can be reduced to quinol by NADH in the presence of NADH - dehydrogenase .

本文综述特丁基对苯二酚（TBHQ）应用与检测。

This paper summarized the application and determination of t-butyl hydroquinone ( TBHQ ) .

特丁基对苯二酚（TBHQ）应用与检测高效液相色谱法测定食品中特丁基对苯二酚

Application and Determination of t-butyl hydroquinone DETERMINATION OF ANTIOXIDANT TBHQ IN FOODS BY HPLC

通过微电池的反应，苯酚首先被降解成邻苯二酚、间苯二酚、对苯二酚等中间产物，进而又被矿化为CO2和H2O。

In the micro-cell , firstly phenol is degraded into the intermediates , such as catechol , resorcinol and hydroquinone , and then mineralized into CO2 and H2O .

本文报导了制做碳糊电极的方法及对苯二酚测定中当集时间、分析物浓度、底液pH等因素的影响。

A method of making the carbon paste electrode , and the effect of variation of pH , preconcentration period , bulk concentration , and other factors upon the characteristics of the stripping currents in the determination of hydroquinone are reported .

本文介绍用示差脉冲伏安法（DPV）采用自制的碳糊电极同时测定邻苯二酚与对苯二酚的方法。

A method to determine pyrocatechol and p-dihydroxybenzeqe in the presence of each other with carbon paste electrode by DPV was reported .

紫外分光光度仪检测DNA浓度，选用OD260/OD280值大于1.75的样品。采取强碱变性、亚硫酸氢钠/对苯二酚法处理DNA后，用层析柱过柱除盐。

DNA concentration and purity were tested by Ultraviolet spectrum , the sampled OD 260 / OD280 value was larger than 1 . 75 . DNA was denatured by strong base and then treated with Sodium Bisulfate / benzenediol , and salt were eliminated through chromatogra-phy column .

用乙醇提取川芎、红景天和黄芪三种中药中的抗氧化物质，并采用DPPH法测定各种中药提取液的抗氧化性，并同特丁基对苯二酚（TBHQ）、维生素E进行比较。

Antioxidant substances of three kinds of Chinese traditional medicine were extracted with ethanol . Using the assay systems of DPPH , we determined their antioxidant activity and compared with TBHQ and Vitamin E.

通过对苯二酚烷基化反应对其进行活性测试，发现转化率为90%以上，TBHQ得率达到70%以上。

The catalytic activity was tested by alkylation of hydroquinone and a high conversion above 90 % and TBHQ selectivity above 70 % was obtained .

第三章采用基质固相分散技术处理面包样品，液相色谱法检测其中的富马酸二甲酯（DMF）和特丁基对苯二酚（TBHQ）。

In chapter 3 , Matrix solid phase dispersion was used to treat the bread sample and the DMF and TBHQ in the bake sample were determined by liquid chromatography .

钛硅分子筛对以30%H2O2为氧化剂的苯酚羟基化反应具有良好的催化活性，反应可同时生成邻苯二酚（CAT）和对苯二酚（HQ）。

Ti-Si molecular sieves have an outstanding catalytic property using 30 % H 2O 2 as oxidant for the hydroxylation of phenol , in which catechol ( CAT ) and hydroquinol ( HQ ) can be obtained concurrently .

建立了气相色谱法同时测定饲料添加剂中2.6－二丁基羟基甲苯（BHT），丁基对羟基茴香醚（BHA），特丁基对苯二酚（TBHQ）的方法。

A method for determination of dibutyl hydroxy toluene ( BHT ), butyl hydroxy anisol ( BHA ) and tetra-butylhydroquinone ( TBHQ ) in forage additives by gas chromatography was established .

以对苯二酚为原料，经MANNICH反应制得含杂环中间体1、2，进一步与长链卤代烷反应制得3种含杂环的多链表面活性剂34、、5。

Intermediates 1 and 2 containing heterocycles were synthesized from hydroquinone via Mannich reaction . Surfactants 3,4,5 with two more chains were prepared from 1 or 2 with long chain alkyl halide .

本文采用液相色谱/离子阱质谱法（LC/ITMS）对食用植物油中的抗氧化剂叔丁基对苯二酚（TBHQ）进行定量检测。

Liquid chromatography / ion trap mass spectrometry ( LC / ITMS ) was used to quantify the synthetic phenolic antioxidant tertiary butylhydroquinone ( TBHQ ) in edible vegetable oil .

采用密度泛函理论（DFT）在UB3LYP/6-311G//UB3LYP/6-31G水平上研究了水溶液中羟基自由基进攻苯酚的邻位和对位生成邻苯二酚和对苯二酚的反应机理。

The reaction mechanism of phenol with hydrogen peroxide radical attacking its para and ortho positions in water was proposed and investigated by Density Functional Theory ( DFT ) method at UB3LYP / 6-311G / / UB3LYP / 6-31G computational level .