化学交换

化学交换浓集~（13）C级联之流量研究

The flow in a cascade enriching ~ ( 13 ) c by chemical exchange

本论文着重讨论了NMR中的化学交换问题。

This dissertation is focused on some problems of chemical exchange in NMR .

化学交换法富集稳定同位素~（13）C的级联研究

Cascade Enrichment of Stable Isotope ~ ( 13 ) C by Chemical Exchange

CT灌注成像评估活体肝移植术后肝脏血液动力学变化化学交换饱和转移类对比剂在磁共振成像中的研究进展

Computed Tomography Perfusion Technique in Living Donor Liver Transplantation : an Initial Study of Hemodynamic Changes in Liver Grafts Research progress of CEST agent in MR imaging

同位素化学交换COCO过程与CO2/氨基甲酸酯体系浓集~（13）C对比实验

The comparison of COCO and CO_2 / carbamate chemical exchange systems for the enrichment of ~ ( 13 ) C

NH4~+在褐煤腐植酸中的物理吸附与化学交换

Physical adsorption and chemical exchange of nh_4 ~ ( + ) on humic acid extracted from brown coal

采用化学交换反应精馏法，针对三氟化硼-苯甲醚分离体系，研究了硼同位素分离生产过程的特点，建立了交换精馏塔的稳态数学模型，并利用matlab程序进行模型求解。

By chemical exchange reaction and distillation between BF3 and the complex anisole · BF3 the separation character of boron-10 isotopes was studied . A mathematical model , proposed in this paper , was solved by a Matlab program .

本文报道了CO2/二正丁胺/三乙胺化学交换浓集稳定同位素~（13）C1-5型级联之流量研究结果。

The experimental results of the flow in a set of tyle 1 & 5 cascade enriching stable isotope ~ ( 13 ) C using CO_2 / di-n-butylamine ( DNBA ) / triethylamine ( TEA ) chemical exchange system are reported .

锂盐-冠醚络合物化学交换体系中的同位素效应

Isotopic effect of a chemical exchange system featuring Li-CROWN ether complex

当7.12化学交换占主导地位。

However , under the condition of 7.12 chemical exchange was dominant .

奥美拉唑核磁共振结构解析中化学交换对信号的影响

Effect of chemical exchange on NMR signals for structure analysis of omeprazole

研究不变价化学交换体系同位素效应的一种新级联实验方法

A new cascade method for studying isotope effect in chemical exchange system without valance change

化学交换法分离锂同位素

Lithium isotope separation by chemical exchange method

精馏与化学交换法分离硼同位素中液相络合剂的研究

Study on the liquid complex of boron isotopes separation by chemical exchange reaction and distillation

用二维交换谱研究化学交换网络。这些新的技术在化学及生物学中大分子的分析时往往难以理解。

These new techniques are particularly elusive for the analysis of large mol-ecules in chemistry and in biology .

但是活泼质子的表观扩散系数却显著地受化学交换的影响.当以活泼质子为对象时，这种影响需要引起足够的重视。

However , the apparent self diffusion coefficients of the labile protons are obviously affected by chemical exchange .

化学交换精馏法分离同位素硼-10研究进展

10 . We consider that the formula Mim . At the concentration of 10g . Advances in Boron-10 Isotope Separation by Chemical Exchange Distillation

本文采用化学交换反应精馏法分离硼同位素，通过三氟化硼与三氟化硼－苯甲醚络合物的化学交换反应，使得硼10同位素在液相富集，达到分离的目的。

This article is devoted to the separation of boron isotopes by the method of chemical isotope exchange distillation between BF3 and the complex anisole ?

初步的理论探讨揭示，气固界面的化学交换反应是产生排代效应的原因，宏观交换规律决定排代效果。

Some theoretical research reveals that exchange reaction of isotopes in gas solid interface result in the displacement behavior and exchange rate determines the displacing efficiency .

三氟化硼-苯甲醚的分解反应是三氟化硼-苯甲醚络合物化学交换精馏法分离硼同位素不可缺少的步骤。

The decomposition reaction of the complex an is ole · BF3 is indispensable during the separation of boron-10 isotopes by chemical isotope exchange distillation between BF3 and the complex anisole · BF3 .

在成因上有同源性质，推测是混合的多源热液在绿岩带底部或地壳深部的特定地质物化环境中经受地球化学交换后形成的。

As far as the genesis of these fluids are concerned , they are of isogeneous property formed inferentially with mixed thermal fluids of various sources in the bottom of greenstone belt or specifically in the geological physico-chemical environment of crust deep after geochemical exchange .

目前广泛采用的同位素分离方法主要有气体扩散法、气体离心法、化学交换法等，由于这部分方法能耗高、分离效率低且环境污染严重已经难以满足对高纯度、特殊同位素的需求。

At present , the main ways to separate isotope are gas diffusion , gas centrifugation , chemical exchanging , etc. Because of their high energy consumption , low efficiency and high pollution , these ways are difficult to meet the demand of higher purity and special isotope .

海-气间化学物质交换通量的研究

Re sea RCH advances of the flux of chemical species exchange between air and sea

沿海海&气界面的化学物质交换

Air sea chemical exchange in coastal oceans

首先针对二灰砂砾材料组成的特点，利用化学离子交换原理，详细研究了混合料的物理力学特性及其强度形成机理。

First in allusion to the characteristic of its components , the physics-mechanics characteristic and the strength mechanism were discussed in detail by using the chemical theory of ion exchange .

本文采用湿机械化学-离子交换法再生纳米TiO2。

In the thesis , nano-TiO2 was resuscitated by soft-mechanochemical ion exchange method .

沿海海&气界面化学物质的交换对生物地球化学循环起着十分重要的作用。

Chemical exchange at the air coastal sea interface plays an important role in coastal biogeochemical cycles .

流动注射化学发光离子交换法研究&Ⅰ.化学发光阴离子交换树脂的研制及应用

Investigation on the Flow Injection Chemiluminescence Ion Exchange Method ⅰ . The Preparation and Application of Chemiluminescent Anion Exchange Resin

他要我们就我们所了解的上星期在大马士革郊区发生的骇人听闻的化学武器攻击交换情况。

And he asked us to consult about what we know regarding the horrific chemical weapons attack in the Damascus suburbs last week .

把含有害离子的废液，经由电解、化学、离子交换、膜分离等方法下降至排放标准。

Its processes the liquid with harm ion , by descending to the exhaustion standard through the methods , such as electrolysis 、 chemistry 、 ion exchange and the film separation etc.