Esters的例句大全

Nipagin esters were synthesized by the esterification of dodecyl and octadecyl alcohol with p-hydroxybenzoic acid in the presence of vitamin C.

以维生素C为催化剂，对羟基苯甲酸和十六醇及十八醇为原料合成尼泊金十六酯与尼泊金十八酯。

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This paper reports the synthesis of nine N-( 4-carbethoxy-4-substituted butyryl)-N-substituted glycines and their corresponding t-butyl esters. The former were expected to have inhibitory activity of angiotensin-converting enzyme. All of the compounds mentioned above were unreported in the literature.

本文报道9个估计具有血管紧张素转化酶抑制活性的N-（4-乙氧羰基-4-取代丁酰基）-N-取代甘氨酸及其相应叔丁酯的合成和鉴定。

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Kinetic Resolution of Glycidyl Esters Catalyzed by Lipase in a Biphasic Reaction System

双液相反应体系中脂肪酶催化拆分缩水甘油酯

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This is a generally known method for obtaining phenylnitromethane from benzyl cyanide. Nitrous esters can react with alkyl peroxides to yield alkyl nitrates.

从苯乙腈制取苯基硝基甲烷就用这个方法。亚硝酸酯与过氧化烷基反应，得到烷基硝酸酯。

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( CNOH) an unstable acid occurring mainly in the form of explosive salts and esters that is isomeric with cyanic acid.

（CNOH）一种不稳定的酸，主要以易爆炸的盐和酯的形式存在，是氰酸的同质异构体。

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Boronic group can react with diols to form stable esters.

硼酸基团与二羟基化合物能可逆反应生成稳定的酯。

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The content of butyrates and butyl esters in peel were higher than in flesh.

且在果皮中丁酸酯类和丁酯类含量比果肉中显著增加。

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Polyol esters are suitable to be lubricant of minimal quantity lubrication to metal working.

多元醇酯适合作为微量润滑金属加工润滑剂.

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Esters of ethyl alcohol with acid-function organic compounds of sub-Chapters I to VII are to be classified in the same heading as the corresponding acid-function compounds.

乙醇与本章第一分章至第七分章的酸基有机化合物所构成的酯，应按有关酸基化合物归类。

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This article summarized the characteristic of Diacetyl Tartaric Acid Esters of Mono-and Diglycerides, and its application in grain, oil and food.

本文综述了食品乳化剂双乙酰酒石酸单（双）甘油酯（DATEM）的特性，及其在粮、油食品中的应用。

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Synthesis of mixed dibasic acid esters by using resin catalyst

树脂催化合成混合二元酸二甲酯

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Essential oils& Determination of ester value of oils containing difficult-to-saponify esters

GB/T14455.10-1993精油含难以皂化酯类的精油酯值的测定

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After being esterified, fatty acid methyl esters were separated and determined by a 50m × 0.35mm i.d. glass capillary column coated with PEG 20M and FID detector.

脂肪甲酯化后，采用50m×0.35mmi.d.PEG－20M玻璃毛细管柱，FID检测器，并结合GCLMS进行了脂肪酸分析。

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In addition, the problem of ester exchange of rosin esters as the function of TMAH and the condition for their determination were proposed.

本文还提出了有关中性松香施胶剂中松香酯成分由于TMAH作用而产生的酯交换问题及其解决办法。

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Nerve agents such as Sarin, Tabun and Soman are parts of organic phosphorus esters to which organophosphorus pesticide belong.

神经性毒剂沙林、塔崩、梭曼与有机磷类农药敌敌畏等同属于有机磷酸酯类化合物。

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Sodium diethyl oxalacetate was prepared by Claisen condensation with acetic and oxalic acid esters.

以乙酸乙酯和草酸二乙酯为原料，经交叉Claisen酯缩合反应合成钠代草酰乙酸乙酯。

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Carboxylic acids with baldheaded or ketone function and their salts and esters

具醛或酮基的羟酸及其盐类和酯类

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A series of 13 p-aminobenzoate esters were selected as model drugs to study correlations between HPLC retention parameters and percutaneous rate.

本文以13个对氨基苯甲酸酯化合物为模型药物，研究它们的HPLC保留行为与透皮速率的关系。

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A method of catalytic synthesis of chloroacetic long-chain fatty alcohol esters was reported.

介绍了一种催化合成氯乙酸 长链 脂肪醇酯的方法.

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The stems and leaves in the stems and leaves of Lycopersicon esculentum Mill showed they are very soluble in water and that most of them are nitrogenous and esters.

番茄茎叶中挥发性成分多为含氮化合物和酯类化合物，具有特殊气味，有较强水溶性。

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