偶氮染料

The PH value, formaldehyde content and azo dyes are settled, and the three indexes are come into notice by most people. Thus the standard of Wushu garment has more highly technical than other standard.

确立了PH值、甲醛含量、偶氮染料这三个普遍引起关注的指标，从而使武术服标准同其它服装标准相比在技术含量上有了明显的提高。

The photocatalytic degradation process of azo dye Congo Red was investigated in aqueous suspension of TiO 2, and the optimum reaction conditions were determined.

通过研究在间歇悬浮体系中直接偶氮染料刚果红在水中的光催化降解过程，确定了最佳降解条件。

Schizophyllum sp. F171. The azo dye ,Congo red, was decolorized effectively by Schizophyllum sp.

裂褶菌F17在限氮培养基中对偶氮染料刚果红表现出较高的脱色能力。

But, because of the complexity of the dye molecule, there has been short of detailed comprehension in its photocatalytic degradation process. The key problem is difficult to detect the intermediates clearly. In this paper, the photocatalytic degradation of azo dye Congo red in water solution was investigated on UV irradiating TiO2 in the homemade reactor. The optimization conditions were determined and then the rate of decolorization, COD decrease, yield of CO2 and varies pH of aqueous solution during illumination were detected; The varies of the possible intermediates during degradation process were monitored with UV-VIS spectrum and HPLC. The possible mechanism of Congo red photocatalytic degradation is discussed combined with the data of MS.

本文选择有代表性的常见偶氮染料—刚果红作为研究对象，以自制TiO2为催化剂和小功率紫外灯为光源，在自制光反应器上确定了光催化降解的优化条件，并在这个优化条件下测定了降解过程中的脱色率、COD去除率和CO2生成量；利用数显酸度计、紫外可见分光光度计和高效液相色谱仪跟踪测定了降解过程中的可能产物，并结合质谱的数据初步探讨了刚果红的可能降解机制。

The use of azofree dyestuff has to be confirmed in a accompanying.

很多国家是部允许用偶氮染料的，因为可以致癌

Results indicate that the activated silica and powdered coal ash are both good for hydrophobia dyes, but for active dyes or diazo-dyes are not ideal.

试验结果表明，活化后的硅藻土和粉煤灰对疏水性染料效果良好，而对活性染料或偶氮染料效果不够理想。

The results of small molecules are consistently in agreement with the results of experiment.

小分子偶氮染料的计算结果与文献报道的实验观察结果一致。

A new spectrophotometric method for the determination of chromium has been developed. In HCl medium, the chromium oxidizes hydroxylammonium chloride to form nitrite, which produces a pink azo dye when reacting with p-aminobenzene sulfonic acid and α-naphthylamine.

基于铬在稀盐酸介质中氧化盐酸羟胺产生亚硝酸根，而亚硝酸根与对氨基苯磺酸重氮化后可与α-萘胺偶联产生粉红色偶氮染料，提出了分光光度法测定铬的新方法。

In HCl medium, iodate oxidizes hydroxylammonium chloride to form nitrite, which can produce a red azo dye with the reaction of p nitroaniline and α naphthylamine.

基于碘酸根在稀盐酸介质中氧化盐酸羟胺产生亚硝酸根，而亚硝酸根和对硝基苯胺重氮化后可以与α-萘胺偶联产生红色偶氮染料，提出了分光光度法测定碘的新方法。

Reductive dechlorination of polychlorinated biphenyls by zero-valent metal ;2. Zero-valent metals can be used to treat many kinds of pollutants including Organohalides,heavy metal,nitro-aromatic compounds,azo dye,perchloride and nitrate etc.

介绍了零价金属在处理环境污染物中的具体应用，包括卤代有机物、重金属、硝基芳香族化合物、偶氮染料、高氯酸盐以及硝酸盐等，指出零价金属可以通过还原和混凝吸附等作用有效地治理环境污染物，并分析了零价金属处理污染物的特点和应用前景。

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。