diazo

National Standard GB/ T 13984-92 "Microphotography Technique-Standard for Visual Density of Diazo and Vesicular Films" clearly defined the values of visual density for diazo print films.

国家标准GB／T13984-92《缩微摄影技术-重氮和微泡胶片视觉密度规范》对重氮拷贝片的视觉密度值做了明确的规定。

Diazo dye were prepared by the diazo coupling reactions of aniline and 7-acetamide-4-hydroxy-2-naphthalene-β-( N, N-dimethylaminoethyl) sulfonamide.

通过苯胺与7-乙酰氨基-4-羟基-2-萘-β-（N，N-二甲基氨乙基）磺酰胺的重氮化偶合反应合成了双偶氮染料。

Poly ( N-vinyl carbazole) was modified to prepare azo-PVK by post-azo-coupling reaction with diazo salt as raw material using phase-transfer catalysts.

我们以聚乙烯咔唑为偶合组分，和发色基团对硝基苯重氮盐在相转移催化剂存在下，采用后重氮偶合方法，制备出偶氮化聚乙烯咔唑。

Dichloronitrobenzene was synthesized from 2,6-dichloro-4-nitroaniline through diazo-reaction and denitrogenation reaction. The yield of 3,5-dichloronitrobenzene is above 60%.

以2,6二氯4硝基苯胺为原料经重氮化和脱氨基反应制得3,5二氯硝基苯，收率在60%以上。

Micrographics& Visual density specifications for diazo and vesicular films

GB/T13984-1992缩微摄影技术重氮和微泡胶片视觉密度技术规范

Synthesis of 4-Nitro-2-amino-ethylbenzene and its Application as a Diazo-component for Azoic Dyeing

4硝基2氨基乙苯的合成及其作为不溶性偶氮染料色基应用之研究

A method of machining to produce the big bore diameter PTFE sifter of the parts for high speed diazo printer was reported, by using polymer PTFE material.

报道了采用新型高分子材料聚四氟乙烯车削板为原料，机械加工生产高速晒图机的重要部件&大孔径聚四氟乙烯筛板的方法。

This was a five-step process involving: diazo coupling reaction, chloridization, condensation, hydrolysis, condensation respectively.

这是一个五步反应，包括重氮化偶合反应、氯置换反应、缩合反应、水解反应、缩合反应。

In phenylethyl alcohol method-( 4-hydroxyphenylethyl) alcohol was synthesized by esterification, nitrofication, reduction and diazo-tization from-phenylethyl alcohol in 24.0% overall yield.

在苯乙醇合成法中，以苯乙醇为原料通过酯化、硝化、脱酯、还原、重氮化这五步反应合成了β-对羟基苯乙醇，总收率达到24.0%。

A method for the determination of arylamines, aniline,α-naphthylamine and o-chloraniline, which absorption spectra are seriously overlapped, was proposed by back propagation artificial neural network ( BP-ANN)-spectrometry based on the diazo coupling reaction of arylamines with α-naphthol.

利用芳胺的重氮化偶合反应，采用误差反向传播人工神经网络方法，对于吸收重叠的3组分芳胺类化合物体系进行同时测定；

The influence of the main components of diazo film, such as couplers, diazonium compounds and binders, on the color of the dye image was studied.

本文探讨了重氮片的主要组份&偶合剂、重氮化合物和成膜剂对重氮片颜色的影响。

An acid yellow was synthesized by diazo and azo, and characterized by elementary analysis, IR and 1H-NMR.

酸性黄是经过重氮化和偶合反应合成的一种偶氮染料，对它进行了IR、1H-NMR和元素分析的表征。

Improved yield and selectivity are observed while applying this technology on diazo-coupling reactions.

该技术在重氮化、偶合反应中的应用,取得了高于常规反应器的收率和纯度.

The molar mass proportion of PVK and diazo salt is 1:4. Diazo salt was divided into several parts and added into solution in batches at room temperature to react for 96 hours.

聚乙烯咔唑和重氮盐摩尔质量比1：4，重氮盐按分批加入方式加入到反应液中，反应时间96小时，反应温度室温。

Density Control for Diazo Print Film

重氮拷贝片的密度控制

A research into hi-speed hi-contrast graphic arts light room duplicating film Technical Principle of Dual Positive-Negative Diazo Duplicating Film

高感高反差印刷制版明室拷贝片的研究异同像混用重氮复制胶片的技术原理

A method of lamination technology to produce complex material insulating cover suitable for high speed diazo printer is reported, by using nonbasic gloss fibre cloth and unsaturated resin.

报导了采用层敷工艺，使用无碱玻璃纤维布和不饱和树脂研制适于高速晒图机使用的复合材料绝缘机罩的方法。

There are currently photochemcal proofing diazo resin tablets proofing colour dye proofing method, etc.

平化学打样目后有轻氮片打样法 、 色粉打样法等.

[ Methods] Serum total bilirubin and direct bilirubin of 5965 healthy people in Maoming region were determined with diazo reagent method and then were statistically analyzed in different groups of age and gender.

方法用重氮试剂法对该地区健康人群5965人作血清总胆红素和直接胆红素测定，然后按年龄性别分组进行统计学分析。

The process of technology included diazotization, diazo coupling reaction and reduction. The total yield was 60%, the purity of mesalazine ≥ 99.0%.

工艺过程包括重氮化反应、重氮耦合反应和还原反应，总收率60%，产品含量≥99.0%。

Photosensitive complexes of phenolic resin and diazo resin or diazonium salt

酚醛树脂重氮树脂或重氮盐的感光性复合物

Among three possible isomers of the diazo dye, the one with substitution of two β-hydro atoms of naphthalene ring was predicted to be the most possible isomer by analyzing the calculation results.

通过分析计算结果，预测在可能形成的三个双偶氮染料同分异构体中，萘环上两个β氢被取代的双偶氮染料是最可能的生成的异构体。

Some factors affecting the image color of diazo film

影响重氮片影像颜色的因素

Sephadex G-200 and ( P. β-Sulphatoethylsulphonyl) anine ( SESA) were first etherified to prepare p-aminobenzene sulphone ethyl ( ABSE)-Sephadex G-200 and then, ficin was fixed on ABSE-Sephadex G-200 by means of diazo-reaction.

将Sephadex G-200与β-硫酸酯乙砜基苯胺（SESA）首先醚化制备对氨基苯砜乙基交联葡聚糖（ABSE-Sephadex G-200），然后经重氮化固定无花果蛋白酶。

For example: brevibacterium diazo resin treantment exposure during bleaching , it can change the surprint template color.

例如: 黄色轻氮物在曝光历程洋被不染黑, 它可以保持已曝光的模版的颜色.

Technical Principle of Dual Positive-Negative Diazo Duplicating Film

异同像混用重氮复制胶片的技术原理

It is discovered that nitrite, diazo compound and 2-naphthalin-1-sulfonic intensively disturb the determination of anilin.

实验发现，亚硝酸盐、重氮化合物、2萘胺1磺酸对苯胺有很强的干扰。

Ferrocenyl diazo ketone 1a was reacted with five imines 2 via the [ 2+ 2] cycloaddition reaction, giving a series of β-lactam diastereoisomers 3a-e, with yields of 50-86%.

利用二茂铁重氮酮1a和5个亚胺2进行[2+2]环加成反应，得到了一系列空间上存在顺反异构的β-内酰胺化合物3a-e，产率为50-86%。

N this paper, two unblocking courses of the ether blocked-couplers in negative diazo type film have been studied by GC/ MS analysis.

本文通过GC／MS谱分析研究了重氮负性胶片中醚类封闭偶合剂的解封历程。

First, 5-nitro-1 and 4-naphthoquinone are prepared through nitration and oxidization of naphthalene, and then through reduction of nitro into amide, diazotisation of the amide and hydro-lytic action of diazo salt, the juglone is made.

萘经过硝化、氧化生成5-硝基-1,4萘醌，然后硝基还原成氨基、氨基重氮化、重氮盐再水解，最终用新方法制得胡桃醌。