对苯二酚

The recoveries of catechol and hydroquinone are found in the range of 83%-107% and 92%-100%, respectively.

该法用于测定水样中邻苯二酚和对苯二酚，回收率分别为83%~107%和92%~100%。

A synchronous fluorescence method for simultaneous determination of catechol and hydroquinone has been established.

建立固定波长同步荧光法同时测定邻苯二酚和对苯二酚的分析方法。

The progerss in production and process research of hydroquinone and catechol were reviewed, and suggested that the composite oxide catalysts are the applicable catalysts in our country.

综述了邻苯二酚与对苯二酚的生产与研究现状，提出了复合氧化物类催化剂是适于我国国情的实用催化剂专利。

The concentrations of catechol and hydroquinone are linear with the intensity of synchronous fluorescence in the concentration range of 1.0×10^(-6)-9.0×10^(-5) mol/L and 1.0×10^(-6)-1.0×10^(-4) mol/L, with correlation coefficients of 0.998 6 and 0.999 1 and detection limits of 8.2×10^(-7) mol/L and 5.4×10^(-7) mol/L.

邻苯二酚和对苯二酚在1.0×10^(-6)~9.0×10^(-5)mol/L和1.0×10^(-6)~1.0×10^(-4)mol/L浓度范围内与同步荧光强度呈线性关系，相关系数分别为0.9986和0.9991，检出限分别为8.2×10^(-7)mol/L和5.4×10^(-7)mol/L。

04Ppm.The modified electrode was used for selective determination of hydroquinone in the presence of resorcinol,with a satisfactory result.

该修饰电极在间苯二酚存在的条件下，能被用于选择性检测对苯二酚，得到了令人满意的结果。

The modified electrode can be used in the determination of o-benzenediol and p-benzenediol in imitative waste water.

该电极用于模拟废水样中邻苯二酚和对苯二酚的测定，结果令人满意。

The synthesis of terpene hydroquinone resin with turpentine and hydroguinone was studied, with AlCl 3 as catalyst.

摘 要：研究了以无水三氯化铝为催化剂，松节油与对苯二酚聚合反应制备萜烯对苯二酚树脂的情况。

Hydroquinone has been identified as a phagostimulating pheromone,and it has been considered that all the Isoptera produce and employ hydroquinone as phagostimulating pheromone,irrespective of taxonomic position and biological traits.

目前，已确定对苯二酚为白蚁诱食信息素，且认为整个等翅目昆虫都产生和使用对苯二酚作为诱食信息素，与分类地位和生物学特性无关。

Phenylenediamines, aminophenols, methoxyanil ines, and 1,4- hydroquinone, 1-naphthylamine were polymerized via the catalysis of horseradish peroxidase in mixed solvents of l,4-dioxane and water at amibient conditions by using hydrogen peroxide as the oxidant. Several factors influencing the polymer yield, such as the concentration of the substrate, pH value and oxidant amount were examined using a- phenylenediamine as substrate.

本文选择了苯二胺、氨基苯酚、甲氧基苯胺三个系列，以及对苯二酚、1-萘胺等单体，在二氧六环-水混合介质中以辣根过氧化物酶为催化剂，以双氧水为氧化剂进行了不同底物的室温酶促聚合，并以邻苯二胺为底物考察了溶剂用量、pH值、作为氧化剂的双氧水用量等条件对聚合物收率的影响。

Hydroquinone-formaldehyde organic aerogels with high HC ratio (10~40, molar ratio of hydroquinone to catalyst) have been prepared using sol-gel process. And carbon aerogels have been prepared by pyrolyzing the aerogels.

溶胶－凝胶法制备了高HC比（10~40，对苯二酚与催化剂(Na2CO3)的物质的量之比）的对苯二酚－甲醛有机气凝胶，并经高温碳化处理得到其碳气凝胶。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷