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醛字的意思

醛
拼音quán
部首酉部
总笔画16画 使用频率二级字
结构左右结构
组词醛组词
书写练习醛字书写练习 笔顺打印醛字笔顺打印

统一码

醛字UNICODE编码U+919B,UTF-32: 0000919b,UTF-8: E9869B。

详细解释

quán

1、以乙醛为代表的一类很活泼的有机化合物,其特征是具有-CHO基,呈中度氧化态,比伯醇分子少两个氢原子,比羧酸少一个氧原子。

例句

醛是一种含有甲酰组的有机化合物。

An aldehyde is an organic compound containing a formyl group.

目的是与不同的芳香醛进行环合和缩合,以合成一系列的金酮。

The objective is to cyclize and condense with different aromatic aldehydes to synthesize a series of aurones.

它们都用磷酸甘油醛脱氢酶基因的片段作为加载控制来进行改良。

They were modified with fragment of the glyceraldehyde phosphate dehydrogenase gene (GAPDH) as a loading control.

在氟化钾催化下,芳香醛与氰乙酸乙酯发生克脑文格尔缩合反应,得到高产率的缩合产物。

The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield.

在这项试验中,用托伦斯试剂处理醛。

In this test, an aldehyde is treated with Tollens' reagent.

琥珀酸半醛脱氢酶缺乏症是一种疾病。

Succinic semialdehyde dehydrogenase deficiency is a disease.

果味型烤烟香精主要由反式-2-己烯醛,甲酸己烯酯等组成。

The fruity type flue-cured tobacco essence mainly consists of trans-2-hexenal, hexenyl formate and the like.

采用甲硫醇、呋喃硫醇、吡嗪、反-2,4-壬二烯醛和呋喃酮等主要的牛肉香气成分香原料,可以调配出香气逼真的炖牛肉香精。

Methanethiol, furanthiol, pyrazine, trans, trans-2,4-nonadienal and furfuran ketone were used to develop beef flavor.

醇和醛两者为氧化的次级产物。

Both the alcohols and aldehydes are secondary products of the oxidation.

脂肪酸被生物体转化成包含碳氧双键即羰基的醛。

The fatty acids are then converted by the organisms to an aldehyde that includes a carbon atom bonded to an oxygen atom (together they create what's called a carbonyl group).

需要时从建筑物上移除石棉或脲醛绝缘物。

Remove asbestos or urea-formaldehyde insulation from buildings when required.

目的对比和评价戊二醛用于根管消毒的临床效果。

Objective To compare and evaluate effect of medication of the root canal with glutaraldehyde .

这促使研究人员寻找生产天然香草醛的替代方法。

Therefore, alternative processes for the production of natural vanillin should be studied.

肉桂醛的广泛应用决定其具有十分广阔的发展前景。

The expansive development prospect of cinnamaldehyde were viewed based on its wide application.

原子力显微镜扫描对醛基化玻片表面形貌进行分析。

Scanning aldehyde group glass slide by atomic force microscopy study the surface shape.

并用气相色谱法对制剂中肉桂醛和薄荷醇进行定量测定。

And the contents of cinnamic aldehyde and menthol were determined synchronously by GC.

市场上也出售含有良好风味的香草醛或乙基香草醛的焙烤粉。

The market also offers baking powders flavored with vanillin of ethyl vanillin.

公司拥有国内最先进的人造板生产设备、质量检测仪器和醛胶生产线。

The company has the most advanced wood-based panel production equipment, quality inspection apparatus and aldehyde production line.

探索了不同比例的脂、不同戊二醛浓度和不同类型脂质体的偶联情况。

The coupling condition of different lipid ratio, glutaraldehyde concentration and types of liposomes was probed.

乙醛脱羧酶帮助醛脱去羰基形成仅有碳氢原子组成的链,即碳氢化合物。

The enzyme aldehyde decarbonylase helps remove this group to form a chain of hydrogen and carbon atoms--the hydrocarbon.

不过要知道,固体中和平衡时溶液中的单糖是以开链型环状半缩醛占多数。

However, it must be understood that cyclic hemiacetals of those open-chain forms prevail I solids and at equilibrium in solutions.

利用麻杆制浆废液和废弃麻芯代替部分脲醛胶及刨花压制刨花板的研究。

The substitution of UF resin in making flakeboard with bluish dogbane pulping waste liquid and bluish dogbane pith was studied.

对比评价表明,自制的催化剂活性及选择性高于进口的液相醛加氢催化剂。

The results obtained from comparison tests with imported catalysts show that the catalyst has higher activity and selectivity.

他在《农业和食品化学期刊》上报导说,浓缩的酒确实减少了丙二醛的形成。

As he reports in the Journal of Agricultural and Food Chemistry, the wine concentrate did indeed reduce the formation of malondialdehyde.

近年来随着咪唑以及呋喃酮等香料需求的增加,丙酮醛的需求也在逐步升高。

In recent years, the demand for methylglyoxal increased with the rise of the demand for imidazole and furanone.

测定丙二醛(MDA )、巯基含量和总抗氧化能力等氧化还原相关生化指标。

The MDA level, thiol content, and total antioxidative capacity of cells were also measured.

测定丙二醛(MDA )、巯基含量和总抗氧化能力等氧化还原相关生化指标。

The MDA level, thiol content, and total antioxidative capacity of cells were also measured.