结果分离得到原百部碱化学单体作为含量测定对照品。
HPLC was used to determine protostemonine content in Radix Stemonae and the optimum condition was chosen.
ABS是由丙烯腈、丁二烯和苯乙烯三种化学单体合成。
ABS is produced by a combination of three monomers: acrylonitrile, butadiene, and styrene.
为了提高丝绸产品的质量，对蚕丝绸辐射接枝化学单体的原理和方法进行了更深入地研究。
In order to improve the properties of natural silk fabrics, the mechanism and method of the radiation induced graft copolymerization of monomers onto natural silk fabrics were more studied.
形成DNA、RNA单体以及编码遗传信息的化学结构，也就是组成碱基对的碱基包括A、G、T、C、U。
The chemical structures that form the units of DNA and RNA and that encode genetic information i.e. the bases that make up the base-pairs are A, G, T, C and U (see DNA).
该调剖剂以聚丙烯酰胺和丙烯酰胺单体为主剂，在其他化学助剂共同作用下形成具有较高强度和弹性的凝胶体。
The agent is gel with higher strength and elasticity by the common action of polyacrylamide and acrylamide, whose monomers were taken as main agent, and other chemical coagulant aid.
因此，我们采用羧基单体接枝共聚并加入功能单体的方法对环氧树脂进行水性化的化学改性。
So, the chemical modification which is carboxylic acid monomer graft copolymerization and adding in some functional monomers to prepare waterborne epoxy resin was carried out.
聚合化：由称为单体的较简单化合物经化学方法形成聚合物的情况。
Polmeristion: The chemical formation of a polymer from a simpler compound called a monomer.
综述了唑啉单体的合成及其聚合方法，并对其聚合物的化学改性及共混物作了概述。
This paper describes the methods of preparation and polymerization of monomers of oxazoline. The modification of polyoxazolines by chemical reactions and their blends are introduced.
采用现代技术分离黄瑞香、陕甘瑞香和结香中的化学成分，鉴定了63个（次） 单体化合物的结构。
The chemical investigation resulted in the isolation of 63 compounds, and the structures were determined based on the modern spectral technology.
解聚一种导致聚合物链断裂生成单体单元的化学反应。
The chemical reaction which results in a polymer chain being broken up into monomer units.
在化学成分方面，首次从西洋参果中分离鉴定了14个单体化合物。
In chemistry, 14 monomeric compounds were isolated and identified from the fruits for the first time.
分析了“卤化氰-酚法”合成氰酸酯单体的化学原理。
The reaction mechanism of cyanate ester monomer synthesized by a "cyanogen halide-phenol method" is discussed.
应用领域：在化学制药业的输送和定量任务，以及聚合物生产中单体，低聚物，预聚物的输送。
Application % areas: transportation and quantitative tasks in transportation chemical and pharmaceutical industry, as well as polymer production of monomers, oligomers, prepolymers.
对其中的两个手性单体3和4用进行了电化学聚合，并用循环伏安法对聚合物膜进行了表征。
Electrochemical polymerization of the N-substituted pyrrole monomer 3 and 4. The obtained polymer films were characterized by cyclic voltammograms (CV).
结果表明，苯胺的氨基邻位上引入氯后，单体的电化学聚合速率显著下降，形成的聚合物更易水解。
After chlorine is introduced into the ortho-position of aniline, the polymerization rate of the monomer decreases markedly, the formed polymer is hydrolyzed easily.
方法：运用天然药物化学的分离精制方法进行单体化合物的分离。
Method: the single constituents were separated by the methods of phytochemistry.
在高分子化学实验中，单体的精制主要是对烯类单体而言，也包括某些其它类型单体。
In polymer chemistry experiments, the monomer is refined mainly in terms of vinyl monomers, but also some other types of monomers.
介绍了煤基化学制品，即煤制高碳材料和高聚物单体的研究动向。
The research tendency of making coal-based chemicals, namely, the high carbon materials and monomer of aromatic polymer from coals and coal liquid are introduced.
苯乙烯：一种无色油状液体，化学式为C6H5CH：CH2，是构成聚苯乙烯的单体。
A colorless oily liquid, C6H 5CH:CH 2, the monomer for polystyrene.
通过红外光谱和扫描电镜分析，接枝单体是依靠物理沉积和化学键作用与纤维结合的。
The IR spectrum and SEM analysis demonstrated that the graft monomers were bound to the fibers by the ways of physical deposition and chemical bonding.
聚吡咯纳米线的形貌受聚合电位、电化学方法、单体浓度、支持电解质浓度及聚合时间等合成条件的影响。
The appearance of the polypyrrole nanowires is affected by polymerization potential, electrochemical method, pyrrole and electrolyte concentration and polymerization time.
单体分子的基本特性是至少能与两个其它单体分子形成化学键的能力(多功能性)。
The essential feature of monomer molecules is the ability to form chemical bonds (see bonding) with at least two other monomer molecules (polyfunctionality).
N -取代聚苯胺可以通过聚苯胺的N -烷基化、N -酰基化、N -取代苯胺单体的化学氧化聚合和电化学聚合而得到。
N-substituted polyanilines could be obtained by N-alkylation, N-acylation of polyaniline, chemical oxidation polymerization and electrochemical polymerization of N-substituted aniline monomer.
化学泵适用于低粘度物质的输送和定量，应用范围包括在化学制药业的输送和定量任务，以及聚合物生产中单体，低聚物，预聚物的输送。
Application % areas: transportation and quantitative tasks in transportation chemical and pharmaceutical industry, as well as polymer production of monomers, oligomers, prepolymers.
本文以邻甲基苯胺、对氯苯胺、间三氟甲基苯胺和5-三氟甲基-1，3-苯二胺为单体，利用电化学方法，得到了上述苯胺衍生物的聚合物薄膜。
In this paper, polymer films were prepared with o-toluidine, p-chloroaniline, m-trifluoro methylaniline and 5-trifluoromethyl-1,3-diaminobenzene as monomer by electrochemical method.
用化学滴定法测定了接枝物的接枝率，考察了接枝率与单体，引发剂和时间的关系。
The grafting ratio of each sample was accurately measured by titration. The relationships between grafting ratios and monomer, initiator, and time were investigated.
用化学滴定法测定了接枝物的接枝率，考察了接枝率与单体，引发剂和时间的关系。
The grafting ratio of each sample was accurately measured by titration. The relationships between grafting ratios and monomer, initiator, and time were investigated.
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