吡唑啉酮

The transfer behavior of pyrazolone derivatives, such as antipyrine, aminopyrine, 4-aminoantipyrine and analgin, across the W/NB interface was investigated. The three medicines studied can form complex with a proton and the complex formed can transfer reversely across the W/NB interface and the transfer process was controlled by diffusion. The transfer of protonated analgin was not observed within potential window because of its high transfer potential.

研究了吡唑啉酮类的安替比林、氨基比林、4-氨基安替比林和安乃近四种药物在W/NB界面的转移行为，前三种药物在一定pH值的水溶液中结合一个质子形成1∶1质子配合物，并能在W/NB界面发生可逆转移，其转移过程受扩散控制，安乃近的质子化物由于有较高的转移电位而未在电位窗内观察到其转移峰。

When the cyanide is determined by isonicotinic acidpyrazalon method, the ethyl benzoate is distilled and goes into NaOH absorption liquid with cyanide in the process of predistillation, because its boiling point is low.

在用异烟酸吡唑啉酮法对其进行氰化物测定时，由于油酯类的沸点较低，在预蒸馏过程中被蒸出和氰化物一起进入NaOH吸收液

The wastewater from gum benzion production contains benzaldehyde, cyanide, gum benzoin and ethyl benzoate. When the cyanide is determined by isonicotinic acidpyrazalon method, the ethyl benzoate is distilled and goes into NaOH absorption liquid with cyanide in the process of predistillation, because its boiling point is low. Thus the absorption liquid produces a great deal of foam and feculence.

摘要］有机化工产品安息香生产废水中含有苯甲醛、氰化物、安息香和苯甲酸乙酯，在用异烟酸吡唑啉酮法对其进行氰化物测定时，由于油酯类的沸点较低，在预蒸馏过程中被蒸出和氰化物一起进入NaOH吸收液，使得吸收液产生大量泡沫和沉淀，严重干扰后续比色测定。

Several kinds of 4-arninopyrazolone derivatives were synthesized. The reactions between those derivatives and phenol under potassium ferricyanide were used to enrich and determine phenol by an online capillary tube coupled with flow injection system with our own design.

本文合成了几种4-氨基吡唑啉酮衍生物，比较了它们在铁氰化钾存在下与苯酚及其衍生物的反应，并利用这些反应生成的化合物於自行设计的流动注射分析系统，实现了总酚在线分离富集。

Several kinds of 4-aminopyrazolone derivatives were synthesized. The reactions between those derivatives and phenol under potassium ferricyanide were used to enrich and determine phenol by an on-line capillary tube coupled with flow injection system with our own design.

文章摘要：本文合成了几种4-氨基吡唑啉酮衍生物，比较了它们在铁氰化钾存在下与苯酚及其衍生物的反应，并利用这些反应生成的化合物于自行设计的流动注射分析系统，实现了总酚在线分离富集。

The quantitative determination method of potassium ferrocyanide in edible salt is described in the paper.

本方法采用蒸馏食用盐中亚铁氰化钾，吸收氰根，吡啶-吡唑啉酮显色定量测定。

The title compound C_(27)H_(23)FN_(4)O_(2)C_(2H_(5)OH was obtained by the reaction of 1-phenyl-3-methyl-5-pyrazolone with 2-fluorobenzaldehyde in ethanol in the presence of piperidine under microwave irradiation and recrystallization from ethanol.

标题化合物C27H23FN4O2(C2H5OH)是由2分子1-苯基-3-甲基-5-吡唑啉酮和1分子2-苯甲醛微波辐射4 m in，用乙醇重结晶得到。

Ethanol was substituted for N,N-dimethyl sulfoxide as solvent of colouring agent pyrazolone and better results were obtained.

改用无水乙醇代替N，N-二甲基甲酰胺作为显色剂吡唑啉酮的溶剂，效果更好。

After the diazotization ,2-aminophenol-4-(2-'carboxy)sulfanil phenylamine was coupled with acetoacetanilide,2-naphthol,1-phenyl-3-methyl-5-pyrazolone,1-naphthol-4-sulfonic acid,separately to get the different diazotized compounds,then complexed with potassium chromium sulfate or cobaltous chloride to obtain the yellow,orange,red,purple,blue and other colour dyestuffs.

2-氨基苯酚-4-(2'-羧基)磺酰苯胺重氮化，分别与乙酰乙酰苯胺、2—萘酚、1-苯基-3-甲基-5-吡唑啉酮、尼文酸、1-乙酰氨基-7-萘酚等偶合，得到不同的偶氮化合物，然后分别与硫酸铬或氯化钴进行络合反应，得到黄、橙、红、紫、蓝多种颜色染料，并进行了毛织品的染色实验。

The sodium salt condensed with phenyl hydrazine in the acid condition to prepare 1 phenyl 3 carbethoxy 5 pyrazolone.

用此盐与苯肼在酸性条件下进行加成缩合反应可制得 1 苯基 3 羧酸乙酯 5 吡唑啉酮。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。