查询词典 dyes

However, some problems still remain to be solved, i. e. the cyanine dyes as absorbers are easy to fade under irradiation. This is the background of the dissertation.

但其光氧化稳定性能不太理想，易发生光氧化反应而褪色，进而影响其实际应用价值，本论文研究课题正是基于此背景下提出的。

After adding extraneous H〓O〓 at the concentration of 100μM, the culture supernatant with Lip activity could decolor the dyes rapidly.

加入100μM的外源H〓O〓，含过氧化物酶活力的酶液可以使染料迅速脱色。

The results showed that the cross-linking cationic starch was an excellent decolorant for reactive dyes.

对制得阳离子淀粉的脱色性能研究结果表明，交联高取代度阳离子淀粉对活性染料具有优异的脱色效果。

Objective: To study the conditions of decoloration and degradation of dyes of a co-culture group.

目的：探讨混合培养体系对染料的脱色和降解的条件，为实际应用奠定一定基础。

When dyes concentration increased, the rate of decoloration and degradation dye is decreased.

随着染料浓度的增大，混合菌对染料的脱色速率逐渐降低。

The results showed t hat,the efficiency of decoloration of dyes by PAN-DCD is better in acid conditi on.

实验结果表明：PAN-DCD的絮凝效果在酸性条件下显著。

The results show that the decoloration rate is related to the pH value of dyes solution, irradiation time, as well as the intensity of irradiation.

用光度分析法测定了不同光源、溶液的酸度、催化剂的用量、光照时间等条件对染料脱色率的影响。

To denaturalization bath of vinyl sulfone reactive dyes, the better pH value was 3 to 4 and the standing time was about 40 minutes.

对大豆蛋白复合纤维采用活性染料变性浴的染色方法，可以达到良好的效果。

Students should grasp the classification of the nitration reactions and its industrial application, the main nitration reagents and the nitration method, the classification of the sulfonation reactions, the function of sulfo group and its in the industrial application, sulfonating agents and its industrial application, the separation method for the sulfonated compounds, the widespread applicationof diazonium and the coupled reactions and its in the industry specially employed in the dyes and the pigments synthesis

掌握硝化反应的分类及其在工业上的应用。掌握主要的硝化试剂和硝化方法。掌握磺化反应得分类、磺酸基的作用及其在工业上的应用。掌握磺化剂其在工业上的应用。了解磺化物得分离方法。掌握重氮化及偶合反应及其在工业上特别是在染料和颜料合成中的广泛应用。

Three negative dichroic dyes of alkylaminoanthraquinone type were obtained in that 1,5-dichloroanthraquinone, 1,4,5,8-tetrachloroanthraquinone reacted with n-octylamine and n-nonylamine.

用1，5-二氯蒽醌、1，4，5，8-四氯蒽醌与正辛胺、正壬胺反应，合成了3个烷氨基蒽醌型负性的二色性染料。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐