查询词典 ethyl

Along with the people living standard enhancement as well as the diet structure change, the non-ethyl alcohol fatty liver disease incidence rate also is advancing, because the fatty liver arises has goes into hiding the nature, procrastinates the nature, the universality, also its pathological change hazardous nature is bigger, therefore has the extremely vital significance to its preventing and controlling.

随着人们生活水平的提高以及饮食结构的改变，非酒精性脂肪肝的发病率也在增高，因脂肪肝发病具有隐匿性、迁延性、普遍性，且起其病变的危害性较大，故对其的防治有极其重要意义。

Objective To establish a HPLC method for the determination of aceclofenac in human plasma.Methods Acidified samples of plasma (500μL) were extracted with 4 mL of ethyl acetate. The organic phase was evaporated to dryness by nitrogen at 40℃ water bath. The residue was redissolved in mobile phase and then was determined.

醋氯芬酸是一种具有镇痛作用的非甾体类抗炎药物[1]，化学名为[邻-(2，6-二氯苯基)氨基]苯乙酰乙酸，l992年首先于西班牙上市，具有明显广泛的抗炎作用和强力的解热镇痛作用，其生物半衰期较双氯芬酸长，胃肠耐受性较双氯芬酸好，抗炎活性优于萘普生和保泰松[2]。

The similar nicotinoyltrifluoroacetones are synthesized from acetylpyridine and ethyl trifluoroacetate through Claisen reaction.The influnences of alcoholic natrium,reaction temperature and solvent on reaction yield is studied.The subliming method is improved.

本文以乙酰吡啶和三氟乙酸乙酯为主要原料，利用克莱森酯缩合反应，合成了三种相似结构的吡啶甲酰三氟丙酮化合物，考察了碱性试剂醇钠、反应温度和溶剂等因素对反应产率的影响，改进了纯化产物的方法。

As the result of his work, he could announce the Law of Seriation of RareEarths: all salts of rare earths fall in the same order of solubility, except the ethyl sulfates and the nitrates.

由他的工作的成果，他会宣布分离稀土元素的准则：稀土元素的所有盐类的溶解度都有相同的排列顺序，除了乙基硫酸盐和硝酸盐。

A method for the determination of residual ethyl acetate in green tea extract has been studied by headspace gas chromatography in order to set up an analysis method.

采用顶空气相色谱法对绿茶提取物中乙酸乙酯残留溶剂的分析方法进行了研究。

Relative partial molar free energy of NaCl in the mixed solvent of water, ethyl alcohol and acetone were calculated.

应用电导法测定了在303 K时NaCl在混合溶剂中的活度系数，计算了NaCl在混合溶剂中的相对偏摩尔自由能，讨论了NaCl电解质溶液活度系数及其相对偏摩尔自由能随浓度的变化关系。

Result: The stability obtained from alcohol, acetone, ether, ethyl ether all improved the stabilization of curcumin. 80% Alcohol extract had the optimal stabilizineg ability for curcumin.

结果：姜黄的乙醇、丙酮、乙醚、醋酸乙酯等提取部位均能降低姜黄素的降解速率。80%的乙醇提取物对姜黄素的稳定作用最强。

The solubility of the novel polyamides are greatly improved compared with the conventional aramids, especially the polyamide with dendritic blocks of the second genernation as side chains are soluble in most of the common organic solvents such as ether, ethyl acetate, chloroform, acetone, tetrahydrafuran etc.

树状片段的引入大大地改善了聚酰胺的溶解性，特别是以第二代树状片段为侧基的聚酰胺的溶解性得到了很大的改进，可以溶于大部分常见的有机溶剂，如乙醚、乙酸乙酯、氯仿、丙酮、四氢呋喃等。

DPPH method, pyrogallol method and Fenton reaction were used to study the scavenging ability of extracts with 95% ethanol, ethyl acetate, acetone, acetic acid, chloroform, methanol to free radical activity.

方法］应用DPPH法、邻苯三酚自氧化法和Fenton反应分别研究了浓度95%乙醇、乙酸乙酯、丙酮、乙酸、氯仿、甲醇提取物清除自由基活性的能力。

The pigment extraction was loaded into a silica gel column and purified twice with the mobile phase of hexane/ethyl acetate (1:2, v/v) and chloroform/acetone (12:1, v/v) separately.

实验证明，本方法可以得到含量较高的褐藻黄素溶液，为褐藻黄素的大规模生产提供了一定的实验依据。

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。