查询词典 acetic

A simple and sensitive method was investigated for simultaneous determination six organic acids in wine (tatartic acid, citric acid, malic acid, formic acid, acetic acid and succinic acid) by single ion-exclusion chromatography with conductometric detection.

用单柱离子排斥色谱法分离结合电导检测同时测定了多种有机酸（酒石酸、柠檬酸、苹果酸、甲酸、乙酸和琥珀酸）。

Methods: The methods of the increase of blood capillary permeability of the abdominal in mice induced by injection of acetic acid and the swelling of the ear in mice caused by crotin were used for antiinflammatory experiments, aspirin and hydrocortison were respectively used as the positive control;...

小鼠随机分组，抗炎实验用醋酸诱发小鼠腹腔毛细血管通透性增高和用巴豆油诱发小鼠耳肿胀，阳性对照分别为阿斯匹林组和氢化可的松组；镇痛实验采用醋酸诱发小鼠腹痛和用热板诱发小鼠足痛，阳性对照为盐酸吗啡组。

The crotonaldehyde is produced upon catalysis and condensation with acetic aldehyde as raw materials. It is a major raw material for making sorbic acid.

巴豆醛是以乙醛为原料，经NaOH催化缩合产生，是制造山梨酸的主要原料。

Thermoelectric resources to accelerate its comprehensive development and utilization of sea Huangqiao thermoelectric Limited and Taixing Huang Cement Manufacturing Co., Ltd. will carry out extensive market research on the basis on September 9, 2005 by the China Overseas Group Limited approved consent, launched acetic acid with an annual output of 30,000 tons, 25,000 and 10,000 tons of acetaldehyde crotonaldehyde aldehyde chemical projects.

为加快自身热电资源的综合开发利用，中海黄桥热电有限公司和泰兴市黄能水泥制造有限公司在广泛开展市场调研的基础上，于2005年9月9日经中国海外集团有限公司批准同意，上马年产3万吨醋酸、2.5万乙醛和1万吨巴豆醛的化工项目。

Distillation device was slightly improved,analyzed by carbon dioxide and determined by water for the analysis of acetic acid from cuprammonia ,with recovery of 97%.

用蒸馏法测定醋酸铜氨液中醋酸的分析方法，操作简单，终点明显，但是在测定过程中二氧化碳对测定结果有很大影响。

Taking 4-bromobenzaldehyde, acetic, benzaldehyde and ammonium acetate as major raw material, the 4, 5-bis(4-bromophenyl)-2-phenyl-1H-imidazole was synthesized by means of catalysis, oxidation and Debus cycloaddition reaction.

以对溴苯甲醛为原料通过催化，氧化生成1，2-二（4'-溴苯基）乙二酮，再以其与苯甲醛、醋酸胺和醋酸通过德布斯法合成2-苯基－4，5-二（4'-溴基苯基）咪唑。

Sodium diacetate,which is the molecular composite of sodium acetate and acetic acid,is a new type of multifunctional addition agent in foods and forages.

双乙酸钠是乙酸钠与乙酸分子的复合物，是一种新型的多功能食品及饲料添加剂。

A new technology process of sodium diacetate production with glacial acetic acid and sodium carbonate in one reactor.

研究了以冰醋酸和碳酸钠一步合成双乙酸钠的工艺和反应设备，使双乙酸钠生产工艺更为简单合理，经济易行，而且产率达 97%以

A new method for preparing sodium diacetate by one step reaction based on acetic acid and sodium carbonate was studied.

介绍了以醋酸和纯碱为原料，不加任何溶剂，采用一步法合成新型防腐剂双乙酸钠的新工艺，确定了最佳工艺条件：n：n为(4.0～4.2)：1；反应温度60～70℃；反应时间120～180min；醋酸加料时间40～60min，所得产品质量合格，收率可达96％以上。

Optimal process conditions for preparing 2-oxo-1, 4-piperazine diacetic acid(3-KP): 2-oxo-1-piperazine acetic acid was combined with chloroacetic acid at a mole ratio of 1 to 1.1, at temperature 40℃for 8 hours.

通过单因素分析，合成3-KP 的最佳反应条件为：反应温度为40℃，反应时间为8 小时，氯乙酸∶S-KP 的摩尔比为1.1∶1。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。