查询词典 azo

The chem. shifts of b-nitrogen atom in 15N-NMR spectra of four 15N-enriched pyridone azo dyes were reported and the correlation between the chem. shifts of 15N atom and the pH values was studied.

报道了四个富氮-15吡啶酮偶氮染料的氮-15核磁共振中β-氮原子的化学位移，研究了氮-15原子和pH值之间的关联。

Seeing that azo dyes can be reductively degraded by anaerobic microorganisms,an anaerobic treatment process for manufacturing wastewater was developed,in which easily degradable organic wastewater was used as supplemental carbon source.

鉴于厌氧微生物对偶氮染料的还原裂解作用，开发了以易降解工业有机废水作为外加碳源的染化废水厌氧生物处理的新技术。

The AZO dye GGHC-1 was got by coimcidence reaction with p-methoxybenzenamine after reoxidation reaction by Congo red and sodium nitrite.

1引言应LCD产业发展的需要，20世纪90年代出现了彩色偏光膜，它们是利用不同染料在可见光区吸收不同波长的光而产生各种色彩的。

In this paper, we have investigated the development of organic-inorganic composite PR material, prepared a new organic-inorganic nanocomposite PR material of PVK-CdS/DMNPAT, characterized every component and tested it photorefractivty by two beam coupling experiment.The work of this paper includes mainly three parts as followed:(1) An azo dye DMNPP was prepared via reoxidation and coincidence reaction and its derivative DMNPAT was prepared by attaching a long methacrylate chain in DMNPP.

本学位论文分析了国内外有机无机复合光折变材料的研究现状，根据目前有机无机纳米复合光折变材料研究中存在的问题，依照有机无机纳米复合光折变材料各功能组分的基本要求设计并制备了PVK-CdS/DMNPAT的有机无机纳米复合光折变材料，对各组分的合成表征以及光折材料的光折变性能做了较系统的研究。

Trace Ru could sensitively catalyze the fading reaction of chlorosulphophenol azo rhodanine with KClO3 in H2SO4 medium in water bath at 85 ℃, and the fading level was in direct proportion to Ru in certain content range. Based on this, a novel determination method of trace ruthenium was established by catalytic kinetic spectrophotometry.

H2SO4介质中，水浴85℃条件下，痕量Ru能灵敏地催化KClO3氧化氯磺酚偶氮罗丹宁的褪色反应，且褪色程度与钌含量在一定范围内成正比，据此建立了催化动力学光度法测定痕量钌的新方法。

Preliminary experiments show that the rate of condensation of sulfanilic acid with 4-[4-(4-Ni-tro-2-sulfostyryl)-3-sulfophenyl-azo]-3-methyl-1-phenyl-5-pyrazolol is slower than those of p-phenylene diamine a...

对氨基苯磺酸和4-[4-(4-硝基-2磺基苯乙烯)-3-磺基苯偶氮]-1-苯-3-甲-5-羟吡唑在稀的氢氧化钠溶液中缩合的速度，较对苯二胺及对氨基苯甲酸为慢。

A simulated printing and dyeing wastewater, prepared using the undegraded azo dye 4BS and macromolecule chemical dye printing paste CMC as treatment object, the influence of initial pH value, initial concentration, and the concentrations of photocatalyst H2O2 and Fe(superscript 3+) to the photocatalytic degradation effect was investigated, and the related kinetic rule was explored.

以高压汞灯为光源，选用难降解偶氮染料4BS和高分子化学浆料CMC配制的模拟印染废水为处理对象，考察了初始pH值、初始浓度以及光助催化剂H2O2浓度、Fe(上标 3+)浓度对光催化降解效果的影响，并对有关的光催化反应动力学规律进行了探讨。

A fully automated simultaneous determination of nitrate and nitrite in water samples by sequential injection analysis based on the Griess diazo-coupling reaction and the formed azo dye for nitrite at 540nm and reduction to nitrite using coppered cadmium column.

用顺序注射分光光度法，通过一次进样。同时测定硝酸根和亚硝酸根。亚硝酸根是根据格里斯重氮－偶联反应，形成偶氮染料后在波长540nm下进行检测。而硝酸根则通过镀铜镉粒还原柱还原为亚硝酸根后进行测定。

Methylimidazole in soy sauce was extracted with methylene chloride,diazotized to forms a red colored azo-compound with the highly absorbance at the wave length of 440nm and determined by ultraviolet-visible spectrometry.

酱油样品在层析柱中用二氯甲烷洗脱，经重氮化后在波长440nm处具有最大吸收，据此建立了紫外可见光谱法测定酱油中4-甲基咪唑的方法。

The yield was 47.3%. A series of21 azo-1,3,4-thiadiazole compounds were synthesized by diazotizing of2-amino-5-alkyl-1,3,4-thiadiazole with nitrosylsulfuric acid, then couplingwith phenol, substituted phenol or naphthol. The yields were 19.6～58.8%.16 of them were new compounds.

制得的2-氨基-5-烃基-1，3，4-噻二唑用亚硝酰硫酸进行重氮化，再与苯酚、取代苯酚或萘酚发生偶合反应合成了21个偶氮-1，3，4-噻二唑类化合物，其中16个为新化合物，收率为19.6～58.8％。

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。