查询词典 ionic structure

Abstract］ Objective To assess the permeability and clearance rate of a model for ionic permeants after subconjunctival injection using nuclear magnetic resonance imaging; to investigate a pharmacokinetic method for the ocular region in vivo.

目的 使用磁共振成像(magnetic resonance imaging，MRI)评价兔结膜下药物注射后的渗透性和清除率，探讨一种能够在活体内动态观察的眼部药代动力学检测方法。

Subconjunctival delivery of ionic permeants in vivo can be quantitatively analyzed by MRI. MRI is a noninvasive, dynamic and real-time complementary technique to traditional pharmacokinetic methods.

MRI作为非侵袭、动态、实时的检查方法可于活体内定量分析结膜下药物注射后的渗透效率，是对传统药代动力学研究方法的有力补充。

The black ionic plated case and bracelet feature a precision Swiss chronograph two eye movement with big date window , tachymeter bezel and complex layered dial .

黑色离子镀案件和手镯功能的精密计时的瑞士两眼球运动与大日期视窗

The effects of buffer pH and concentration, sodium taurocholate concentration and ionic liquid on separation were investigated.

研究了缓冲溶液的酸度和浓度、牛磺胆酸纳的浓度以及1E-3MI-TFB对分离的影响。

The used ionic liquids can be regenerated by rotary evaporation or re-extraction using tetrachloromethane.

BPyBF4对模型化合物单程脱硫率达到45.5％，可以有效地脱除汽油中的含硫化合物，使用过的离子液体可以通过真空加热或用四氯化碳反萃取再生。

The authors carried many researches of the feasibility about enriching and separating trace zinc from almost cadmium, and the rate of recoveries of several common metal ions according to this methodo Through repeatedly probed and tried out, at last, a thought as collaborated with traditional methods was established - using diantipyrinylmethane as complex reagent ,with ammonium thiocyanate and zinc forming the triple ionic compound in the medium of hydrochloric acid , extracted by trichloromethane, extracted the organic system by ammonium hydroxide in order to gain zinc .

本文主要研究了从镉基体中富集分离微量锌的可行性，以及采用该方法几种常见金属离子的回收率。通过反复的摸索、试验，最终确立了与传统方法相结合的思路—采用二安替比林甲烷作为络合剂和硫氰酸铵、锌在盐酸介质中形成三元离子缔合物，用三氯甲烷作为萃取剂，最后用氨水作为反萃剂将有机相中的锌洗脱出来与镉分离。

In this study, nonionic surfactant sorbitan trioleate (Span 85) was modified with Cibacron Blue F-3GA to become an affinity surfactant (CB-Span 85) and to form affinity-based reversed micelles while dissolved in hexane. Since the CB molecule possesses a specific conformation that mimics nicotinamide adenine dinucleotide, it can bind strongly and specifically to a wide range of nucleotide-dependent enzymes such as dehydrogenases and kinases. Moreover, high protein transfer efficiency in the reverse micelles can be easily achieved by controlling the ionic strength of the aqueous phase.

本实验使用非离子型界面活性剂Span 85与蓝色染料分子Cibacron Blue F-3GA结合，形成具有亲和性的界面活性剂 CB-Span 85，由於CB染料分子具有与NAD+相似的结构，可与含核苷酸部位的蛋白质具有亲和力，将CB-Span 85溶於有机溶剂形成反微胞相，可有效的提高反微胞的选择率，可以只控制离子强度来调节蛋白质进出反微胞的效率。

Hydroesterification of tert-butyl alcohol with ethanol catalyzed by transition metal triphenylphosphine complexes was first investigated in room temperature ionic liquids.

反应温度为100～140 ℃，CO初始压力为2～6 MPa条件下，研究了室温离子液体与过渡金属三苯基膦配合物构成的催化反应体系中，叔丁醇与乙醇的氢酯基化反应。

Hydroesterification of tert-butyl alcohol with ethanol catalyzed by transition metal triphenylphosphine complexes were investigated in room temperature ionic liquids as reaction medium at 100-140℃ and 3-6MPa of CO.

首次在超强酸氯铝酸离子液体中实现了饱和烷烃的羰化反应。发现2，2，4-三甲基戊烷可直接与CO反应，产物叔丁基异丁基酮，叔丁基异丁烯基酮和3，3，5-三甲基环己酮。

EDTA was used as masking agent, and trisodium citrate as total ion strength adjustment buffer was added to stabilize the ionic activity coefficient. The pH was controlled at about 5, the results were directly obtained by Gran graphing method.

以EDTA做掩蔽剂，加入柠檬酸三钠为总离子强度调节剂，使离子活度系数相对稳定，pH值控制在5左右，用Gran氏作图法直接查得结果。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样