同分异构体

建立了MDI同分异构体及水解氯分离的数学模型，考虑了二聚体生成过程的影响，通过模拟优化得到了过程系统的最佳操作条件。

The mathematical model of the separation of MDI isomer and hydrolysis of chlorine is set up . In this model the effect of the generating process of dimer is considered . The system 's optimal operational condition is attained by simulation and optimization .

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 .

原子团簇P6同分异构体的可能性

The Possibilities of the Isomers for Phosphorus Clusters P_6

磷原子团簇同分异构体的理论研究I：P5~+、P5~-和P5的预测

The Prediction of the Isomers for Phosphorus Clusters P_5 ~ + , P_5 ~ + and P_5

谱图相似度分析结合保留指数对单萜烯同分异构体的GC-MS定性分析

Qualitative Analysis of Monoterpene Isomers by GC-MS with Spectral Similarity Analysis and Retention Index

结论：通过IR谱确证一个化合物是目标物2-苄氧基-5-氟-4-嘧啶酮-3-丁酸乙酯，另一化合物是它的同分异构体。

Conclusions : One compound is identified as the title compound 2-benzyloxy-5-fluoro-4-oxo-pyrimidine-3-butyric acid ethyl ester , and the other one is its formula isomer .

MDI同分异构体及水解氯分离的研究（Ⅰ）实验研究

The Separation Process of MDI Isomer and Hydrolysis (ⅰ) The Experiment Study

DDT的4种同分异构体均未检出；

Four isomers of DDT were nor detected .

随着体系pH增大，壳聚糖对酸性品红的吸附能力减弱。酸性品红存在着两种同分异构体（II和III）。

The adsorption capability of acid fuchsin on chitosan decreases with the increase of pH. Acid fuchsin has two kinds of isomers ( II and III ) .

本文采用了样条卷积（SC）的方法用以分辨重叠峰。通过这个方法考察了有机氯类农药DDT中的2个同分异构体P。

A method called spline convolution ( SC ) for resolving overlapped peaks was used in this paper .

DDT类农药同分异构体和同系物的联合雌激素效应

A Study on the Combined Estrogenic Effects of the Isomers and the Homologue of DDT Pesticide

采用UNIFAC方程回归同分异构体物系的固液相平衡

Regression of Solid & Liquid Equilibrium of Isomers by Using UNIFAC Equation

共轭亚油酸（CLA）是亚油酸的同分异构体的混合物，主要来源于牛乳、乳制品及反刍动物食品的天然营养成分。

Conjugated linoleic acid ( CLA ) is a collective term to describe one or more positional and geometric isomers of linoleic acid .

并根据分子体系的能级差ΔE（LUMO-HOMO）判断了同分异构体的稳定性关系。

The energy difference Δ E_ (( LUMO-HOMO )) of the molecular systems was employed to analyze the stability of isomers .

PBNA及其同分异构体PANA在小鼠ICR系中致癌性的比较研究

A comparative study on carcinogenic activities of PBNA and its isomer Pana in ICR mice

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 .

环氧化酶（cyclooxygenase，COX）又称前列腺素过氧化物合成酶，是催化花生四烯酸合成内源性前列腺素的限速酶，包括3种同分异构体。

Cyclooxygenase ( COX ) , also called prostaglandin peroxidate synthetase , is rate-limiting enzyme which catalyses arachidonic acid synthesizing endogenous prostaglandin , including three types of isomeride .

MBfR降解混合二甲苯3种同分异构体之间仍然存在一定的抑制作用。

For the degradation of the isomers of mixed xylene , inhibition effect was observed .

根据浮选药剂的同分异构体原理，ZJ-3对锡石细泥也应有良好的捕收性能。

According to isomeric principle , ZJ-3 is also a good collector of cassiterite .

以碳原子数N和Wiener指数W，P为结构参数，建立了烷烃同分异构体的沸点与其分子结构间的定量关系式，用此式计算了76个支链烷烃的沸点。

This paper , using the number N of carbon atoms and Wiener index W , P as structural parameters , established a quantitative relationship formula between boiling points and its molecular structure of alkane isomers . The boiling points of 76 branched chain alkanes were calculated .

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 .

PLS-HPLC法同时测定二甲苯三种同分异构体的建模研究

Simultaneous Determination of Xylene Isomers by PLS-HPLC

保留时间锁定（RTL）技术帮助快速定性单个的同分异构体。选择离子监测模式（SIM）保证了很高的测试灵敏度。

Retention time locking ( RTL ) technique was used for quick identification of specific congeners , with selective ion monitoring ( SIM ) mode for mass spectrometry ( MS ) detection , resulting in higher detection sensitivity .

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 .

建立了研究大鼠口服延胡索有效部位后DHC同分异构体药物动力学的LC-ESI-MS/MS半定量分析方法，给药剂量为483mg/kg。

A semi-quantitative LC-ESI-MS / MS method was developed for the pharmacokinetic study of the isomer of DHC when given in the EFY afer oral administration in rat at a dose of 483mg / kg .

乙醇氧化经裂解反应、脱氢反应最终形成支链反应，乙氧基C2H5O的三种同分异构体在链分支中决定了链分支的进行方向。

The unimolecular decomposition and dehydrogenation of ethanol initiate the branched chain reaction , and the3 isomers of radical C2H5O determine the direction of the reaction chain branching .

目的研究三甲基-β-环糊精（TM-β-CD）对邻、间、对硝基苯酚（o-NP、m-NP、p-NP）同分异构体的分子识别作用。

Objective : To study the molecular recognition of trimethyl - β - cyclodextrin with o - , m - , p - , nitrophenol ( o-NP , m-NP , p-NP ) Isomer .

C14H16N2同分异构体中的任意一种，由甲苯变化而成，其中有一种可用作察看水中是否含金或氯气的试剂。

Any of several isomeric bases , C14H16N2 , derived from toluene , one of which is used as a reagent to test for gold and for chlorine in water .

JL-012至JL-017分别与JL-018至JL-023互为同分异构体，文中分别从反应机理及谱图上的差别对目标化合物的结构进行了表征。

JL-012 to JL-017 were the isomeric compounds of JL-018 to JL-023 respectively . The structures of the compounds were discussed from the reaction mechanism and the differences of spectrum .

我们提出了一个可加性规则的半经验公式，并且运用该公式对10~300eV时C3H6同分异构体电子散射总截面进行了计算。

A semi-empirical additivity rule is presented . Total cross sections ( TCSs ) for electron scattering from C_3H_6 isomers : propene ( C_3H_6 ) and cyclopropane ( c - C_3H_6 ) have been calculated in 10 ~ 300eV employing the semi-empirical additivity rule .