丁烷的另一同分异构体为正丁烷。
丁烷的同分异构体。
裂解产物中含量最多的均为丁香酚及其同分异构体。
The contents of eugenol and its isomers were most the pyrolysis.
应用高速逆流色谱法对同分异构体的分离纯化进行研究。
High speed countercurrent chromatography (HSCCC) was successfully used for the separation and preparation of isomeric compounds.
进而探讨了脂肪醇同分异构体的密度与其分子距边矢量的定量关系。
Then the quantitative relationship between density of the alcohols and their molecular distance edge vector(VMDE) is approached.
是存在于乳糖和多糖中的一种六醛糖,为葡萄糖的同分异构体。参见。
Galactose a sugar found in lactose and many polysaccharides. It is an aldohexose, isomeric with glucose. See also sugar.
不对称合成法:在化合物中形成两种不等数量的同分异构体的化学反应。
Asymmetric synthesis: Chemical reaction by which unequal amounts of two product isomers are formed.
丁烯乙烯的三种气态同分异构体之一,C4H8,主要用于制造合成橡胶。
Any of three gaseous isomeric ethylene hydrocarbons, C4H8, used principally in making synthetic rubbers.
本文以《同分异构体》的课堂教学为例,剖析“三点式”的课堂过程教学。
This text take the teaching of isomer as the example, analyze the process of "Three-Points" teaching in the classroom.
最后解释了生物标志化合物胆甾烷的立体同分异构体不同深度丰度变化的原因。
Finally, the reason for stereo-isomer variation of cholestane in different depths and abundances are explained.
有三种同分异构体的无色可燃烷烃,C5H12,从石油中提炼,可用做溶剂。
Any of three colorless, flammable isomeric hydrocarbons, C5H 12, derived from petroleum and used as solvents.
异丁基铵黑药和正丁基铵黑药是同分异构体,它们有相同的分子式,只烷基异构。
Ammonium di-iso-butyl dithiophosphate and ammonium din-butyl dithiophosphate is isobutyl isomers, they have the same molecular formula, only alkyl isomers.
戊烷有三种同分异构体的无色可燃烷烃,c5h12,从石油中提炼,可用做溶剂。
Any of three colorless, flammable isomeric hydrocarbons, C5H12, derived from petroleum and used as solvents.
异构现象是非常重要的,因为酶的特异性限制生物体都只能使用两种同分异构体中的一种。
Isomerism is very important because enzyme specificity restricts viable organisms to the use of only one of the TWO forms.
同时,还对蒽、菲同分异构体在不同溶剂中的溶解度的差异,从活度系数方面进行了探讨。
At the same time the difference of the solubility to the isomeric compound Anthracene and Phenanthrene in the different solvents is discussed by the aspect of the activity coefficient.
本文根据实验数据和电子效应理论,解释了取代苯甲酸三个同分异构体之间酸性强弱的原因。
This article is based on the experimental datas and electron effects. In this paper, we discussed which acidity of three substitutional benzoic acids were stronger and the reason of that.
从而表明本模型不但能用于同系物,而且亦可用于同分异构体及立体异构体保留行为的预测。
Moreover, it shows that the model can be used for the prediction of retention for isologous series$…
考察了不同碳链长度的直链醇、C8醇同分异构体、亲水基结构及催化剂种类对渗透性的影响。
The effects of straight chain alcohols with different chain length, C8 alcohol isomers, structures of hydrophilic group and kinds of catalyst on the permeability were examined.
浮选药剂的浮选性能是它的物理性质和化学性质的集中反映,因此同分异构体的浮选性能亦应十分相似。
The flotation performance of flotation reagents are fully affected by its physical and chemical properties, so the flotation performance of isomers should be very similar.
最常见的例子是有机化合物,亚硝酸盐类的同分异构体,其中一个碳原子以共价键与硝基中的氮原子结合。
The most common examples are organic compounds, isomers of nitrite esters in which a carbon atom is linked by a covalent bond to the nitro group's nitrogen atom.
为满足对乙酰氨基苯乙酸乙酯后续结晶分离工艺的需要,将分子蒸馏技术首次应用于同分异构体的预分离。
To meet the requirement of crystallization separation process for para-acetaminophenylacetate ethyl, molecular distillation was firstly used to separate the isomer.
同分异构体:亦称异构体。分子式相同但构型不同的两种或两种以上的物质,其差别只在于组成原子的排列不同。
Isomer: one of two or more substances with identical molecular formulas but different configurations, differing only in the arrangement of their component atoms.
六种有毒的同分异构体中的一种(CH3)2c6H3nh 2,由二甲苯制得,主要用于染料中间物。
Any of six toxic isomers, (CH3) 2c 6h 3nh 2, derived from xylene, used chiefly as dye intermediates.
同时首次发现食品中添加有与苏丹iii和IV结构极其近似的同分异构体存在,且其同分异构体也为红色物质。
We had found the isomers of Sudan III and Sudan IV in foods at first, their structures were very similar to Sudan III or IV and the isomers were red matter, too.
在QCD弦模型的基础上,基于弦和化学键的相似性,提出了四夸克态的环状颜色结构和QCD同分异构体的概念。
QCD isomeric compounds and a tetra-quark state with the square-like color structure based on a color string model and the similarity between string and chemical bond are proposed and studied.
因此合成原料来源广、价格便宜、易于合成、毒性低的某种浮选药剂的同分异构体,往往能筛选出较好的浮选药剂。
Therefore, some sort of flotation reagent's isomers with features of wide source, low price, easy to be synthetic, and low toxicity can always filter out the better flotation reagents.
甘露醇和山梨醇是一对同分异构体,在化学合成法生产甘露醇时,所产生的山梨醇母液,不可避免的含有部分甘露醇。
Mannitol and sorbitol is a pair of isomer, when mannitol was produced by chemical synthesis, it is ineluctability that there is some part of mannitol retained in the byproduct liquid of sorbitol.
发现1,1-二氨基2,2-二硝基乙烯为最稳定的异构体;其分子体积最小,预示在其同分异构体中爆轰性能最好。
It has been found that 1,1-diamino-2,2-nitroethylene is the most stabilized isomer and has the best exploding properties in three of isomers judged by its the smallest molecular volume.
我们的分析无法指出WD-40中到底含有其中的哪一种。不过WD-40作为溶剂使用时这几种同分异构体没有多大区别。
Our analysis can't determine which ones are present here, but if you're using it as a solvent, as is likely the case with WD-40, they all work just fine.
根据Dantus的说法,这项技术甚至能区别出两个化学同分异构体—有同样的化学分子式但不一样的原子排列—之间的不同。
According to Dantus, the technique can even tell the difference between chemical isomers - chemicals with the same chemical formula but a different arrangement of atoms.
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