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- An efficient synthesis of p butyramidophenyl acetate from p aminophenol and n butyric acid by an improved method was reported. 以对氨基苯酚和正丁酸为原料,合成了4-丁酰氨基乙酰氧基苯,讨论了反应的影响因素。
- The conditions of N acetyl p aminophenol (APAP) synthesis by one step process in fixed bed reactor with Pd/C catalyst were studied. 采用钯炭颗粒催化剂,研究了固定床“一步法”连续合成对乙酰氨基酚的工艺条件。
- Principal component regression (PCR) method is used to analyse five components:acetaminophen, p aminophenol,caffeine,chlorphenamine maleate and guaifenesin. 主成分回归(PCR)分光光度法是近年来发展起来的计算分光光度法之一。
- In this paper ridge regression spectrophotometry was used to analyze three components Acetaminophen, P Nitrophenol and P Aminophenol with absolute ethanol as the solvent. 用无水乙醇作溶剂，本文将岭回归分光光度法应用于对乙酰氨基酚，对硝基酚，对氨基酚三组分含量的分析。
- The market,situation and tendency of p aminophenol from domestic and oversea were introduced. The characteristics of each production method were compared and some proposals were put forward. 介绍了国内外对氨基苯酚的市场与生产概况及其趋势，比较了各生产方法的特点，并提出几点发展建议。
- The scale up process of electrochemical reduction of nitrobenzene to p aminophenol(PAP) in sulfuric acid solution was investigated using a 1000 L cell with rotating Cu-Hg cathode and ceramic membrane. 采用1000L阴极转动分隔式电解槽,研究了硝基苯电解合成对氨基苯酚(PAP)的工业化放大过程。
- The new research progress in synthesis of p aminophenol by chemical reduction,catalytic hydrogenation,electrochemical reduction and carbonic oxide reduction from nitrobenzene was reviewed. 研究硝基苯催化加氢制备对氨基苯酚的工艺条件,对影响因素进行了探讨。
- Keywords p aminophenol;p nitrosophenol;nitrosation;reduction.; 对氨基苯酚;对亚硝基苯酚;亚硝化;还原;
- Keywords p aminophenol;carboxylation;5 aminosalicylic acid （masalazine）; 对氨基苯酚;羧化;5-氨基水杨酸（马沙拉嗪）;
- Keywords emulsion liquid membrane;separation;enrichment;p aminophenol; 乳状液膜;分离;富集;对氨基酚;
- An organic derivative, such as coal or petroleum. 有机衍生物一种有机衍生物，如煤或石油
- Keywords p nitrophenol;N acetyl p aminophenol;fixed bed;synthesis;one step; 对硝基酚;对乙酰氨基酚;固定床;合成;“一步法”;
- I mind my p's and q's whenever I see him. 每当我见到他我都谨慎行事。
- In English, b, p, m and w are bilabials. 英语中的b、p、m、w为双唇音。
- AB and CD intersect at (the point) P. AB线和CD线在P点相交。
- An acyl derivative of hydrazine. 酰肼一种由肼衍生而来的酰
- The time now is 10:00 p, m, sharp. 现在的时间是晚上10点整。
- A mark used as a superscript to indicate the first derivative of a variable. 撇号置于右上角的符号，用以标明变量的第一个导数
- The derivative of the step is the impulse. 阶梯的导数就是脉冲。
- A derivative is defined by a limiting process. 导数是通过一个极限过程加以规定的。
