以下为句子列表：
英文: A description is given of the analytical method for the determination of the urea content in slow-release urea by the p-dimethyl aminobenzaldehyde spectrophotometry.
中文: 摘要介绍用对二甲氨基苯节醛分光光度法测定缓释尿素中尿素含量的分析方法。
更详细...
英文: Abstract: Aim To synthesize a new prodrug, resveratrol trinicotinate.Methods In presence of lithium and a catalytic amount of naphthalene, the reaction of p-methoxybenzyl trimethylsilyl ether and 3,5-dimethoxylbenzaldehyde gave resveratrol after a series
中文: 文摘:目的合成一种前药白藜芦醇烟酸酯.方法在金属锂片和催化量的萘的存在下,3,5-二甲氧基苯甲醛与对甲氧基苯甲醇的三甲基硅醚反应经过一系列转变得到白藜芦醇,白藜芦醇与烟酰氯反应得到白藜芦醇烟酸酯.结果设计并合成了白藜芦醇烟酸酯.结论提供了一种合成白藜芦醇及白藜芦醇烟酸酯的方法,采用KHSO4脱水可选择性的得到反式产物.
更详细...
英文: Fat, protein, aminophenol, trace elements in amygdalus ledebouriana schleche were determinated by ChP (2005 edition) and national standard methods, natural benzaldehyde and amygdalin were determinated by UV absorb method and HPLC method respectively.
中文: 分别用索氏抽提法、微量凯氏定氮法测定野巴旦杏中脂肪、蛋白质，用氨基酸分析仪测定多种氨基酸含量，原子吸收法测定多种元素，紫外法及反相高效液相法测定天然苯甲醛及苦杏仁苷。
更详细...
英文: It was found that when the oxidation reaction was performed in toluene solvent, benzyl alcohol was oxidized to benzaldehyde without any overoxidation to benzoic acid; on the contrary, in acetonitrile solvent, both benzaldehyde and benzoic acid were formed
中文: 发现在甲苯溶剂中进行氧化反应时，苯甲醇被氧化成苯甲醛而不会被深度氧化为苯甲酸；而在乙腈溶剂中，苯甲醛和苯甲酸均有生成。
更详细...
英文: Condensation of benzaldehyde with acetophenone catalyzed by soldium hydroxide results benzal acetophenone in 87% yield at ～ 0°C within 0～ min.
中文: 超声辐射下,苯甲醛和苯乙酮在氢氧化钠催化下于～ 0°C反应 0～ min,苯亚甲基苯乙酮的收率87%。
更详细...
|
