研究表明，HI -CEC特别适合于分离强极性化合物。
It was found that strong polar compounds could be separated effectively in HI-CEC.
针对极性化合物分离困难的问题，提出了亲水作用电色谱的分离模式。
CEC separation mode with hydrophilic interaction stationary phases has been established for separation of polar compounds.
目的探讨芳氧基环氧丙烷与胺发生开环、胺解时生成的低极性化合物的结构。
Aim To separate and determine the less polar compound in the epoxide-opening reaction with the amine.
在分离过程中，一半以上的钙随强极性化合物一起被吸附在色谱柱上，很难洗脱。
More than half of calcium remained in the column with strong polar compound, and was difficult to wash off.
一般地，极性化合物和沥青烯从原油中沉淀下来附着在岩石表面，从而产生油湿性条件。
Generally, polar compounds or asphaltenes deposited from the crude oil onto mineral surfaces cause the oil-wet condition.
油脂在高温条件下发生水解、氧化、聚合反应会生成各种挥发性和不挥发性极性化合物。
Deterioration of oils and fats occurred in high temperature includes three major reactions, such as hydrolysis, oxidation and polymerization.
用非共价法，在极性溶剂中，以丙烯酰胺作功能单体，以强极性化合物槲皮素为模板，制备了分子烙印聚合物(mip)。
A molecularly imprinted polymer (MIP) was prepared using quercetin as the template and acrylamide as the hydrogen-bonding functional monomer in a polar solvent.
结果表明，粉尘有机提取物及其有机酸、多环芳烃、极性化合物可使微核率和SCE率显著增高，并有一定的剂量-反应关系。
The results showed that the dust organic extraction and its polycyclic aromatic hydrocarbons, organic acids, polar compounds increased micronucleus and SCE frequency significantly with a dose effect.
弱极性大孔树脂ab- 8用于野生菱角壳提取物中的黄酮类化合物的分离纯化。
A macroporous resin AB-8 was used to separate and purify the flavone compounds from the shell of wild water chestnut.
结果表明在查尔酮系列化合物中由于羰基的存在，溶剂和溶质问极性作用、酸碱作用比较显著。
The results show that the polarity and acid-base reaction is remarkable between the title compounds and the solvents because of the existence of carbonyl.
往一种极性和非极性液晶混合物中添加3%的这些化合物，可以大大降低液晶混合物的阈值电压，而只引起粘度的小量增加。
Adding 3% of these compounds to a polar and a nonpolar liquid crystal mixtures significantly reduces their threshold voltage while only causes a modest increase in viscosity.
极性转换的本质是有机化合物反应中心碳原子电性发生转换，即亲电性或亲核性发生转换的过程。
The essence of polar conversion is that organic compound reflects the carbon atom electricity in the centre and changes, kiss the electricity or kiss the core course changing.
对用非极性固定相分离不同极性的化合物时色谱峰的峰形与保留值的关系进行了研究。
The relationship between the chromatographic peak form of the compounds with different polarity and the retain value has been studied by using non-polar stationary phase.
咔唑类化合物是原油中极性较大的化合物，是研究油气运移的有效指标。
Carbazoles are polar compounds in oils, and they are useful indicators for study of hydrocarbon migration.
根据脂肪烃、多卤联苯、卤代苯和稠环芳烃等80种非极性有机化合物在鱼体中生物富集因子（BCF）的实测数据，建立了有机物在鱼体中生物富集因子的片段常数法估算模型。
Relationship between bioconcentration factor and fragment constants was investigated. A prediction model was developed on the basis of the observed BCF values of 80 non-polar organic compounds.
对这些化合物的紫外光谱研究表明，在非极性溶剂中，在相对高浓度中，杯芳烃衍生物以聚合体形式存在。
The studies on the UV spectra showed that the calixarenes exist in agglomeration form in non polarity solution in relatively high concentration.
包含所述双核过渡金属化合物的催化剂组合物对于含有极性官能团的单体活性高。
A catalyst composition including the dinuclear transition metal compound is highly active for a monomer having a polar functional group.
采用气相色谱-质谱测定无叶假木贼低极性化学成分，分离鉴定了12个化合物，它们是萘类与类化合物。
The 12 of low polar components of Anabasis Aphylla L. were separated and identified by gas chromatography-mass spectrometry. They are naphthalene and azulene species.
研究了不同极性溶剂中这些化合物的分子内的光诱导电荷转移现象。
Their photophysical properties were investigated in solvents of different polarities by absorption and emission techniques.
结果表明，不同极性的有机溶剂对于极性不同的化合物的萃取效率明显不同。
Experimental results indicated that a higher extraction efficiency could be achieved by using organic solvents with proper polarity.
影响蒽醌类化合物对大型溞光敏化毒性的主要因素是分子的极性、电子的跃迁能力和原子最负净电荷。
The main factors governing photoinduced toxicity of the anthraquinone are molecular polarity, the ability of electron transition and the largest negative net atomic charges.
先介绍了羰基化合物(醛、酮)的极性转换的各种方法，然后谈到胺的极性转换方法和最常用的极性转换试剂。
The various methods for the umpolung of carbonyl compounds (aldehydes and ketones), secondary amines and the most frequently used umpolung reagents are introduced.
在不同极性溶剂中，化合物的荧光光谱表现出显著的溶剂效应。
The target compound shows strong solvent effect in their SPEF spectra.
静电离子色谱方法不仅可以实现阴、阳离子的同时分离，并且可以直接分析极性有机化合物，而不需要被分析物的离子化和预柱处理。
Static ion chromatogram can separate anions and cations at same time, and can also analyse polar organic compounds directly without the ionization of compounds and disposing of pole in advance.
研究表明，该柱在亲水作用电色谱模式下能有效分离苯酚类极性小分子化合物。
The result also indicated that the monolithic silica columns could effectively separate polar phenols under hydrophilic interaction-capillary electrochromatography(HI-CEC) mode.
在有机合成中一些不能用常规反应合成的有机化合物可以通过极性转换的方式来完成。
The organic compounds unable to be synthesized under normal reaction can be fulfilled by means of umpolung.
本文重点讨论了在有机合成反应中的化合物极性翻转问题，并对极性翻转的应用进行了总结和讨论，对有机合成有一定的指导作用。
The article is about the umpolung in organic synthesis reaction. The application of umpolung is discussed and summed up. It has the directive function for organic synthesis.
对双（苯并唑）化合物在不同极性溶剂中的光谱、光物理及光顺反异构化问题进行了详细研究。
The problem of photophysics, spectrum and photo isomerization of bis(benzoxadyl) stilbene in different solvents were studied carefully.
且所合成的化合物随着溶剂极性的增大均表现为正溶剂化显色，且斯托克斯位移较大。
The result showed that the fluorescence and stokes shift were increased with polarity of the solvents increa…
且所合成的化合物随着溶剂极性的增大均表现为正溶剂化显色，且斯托克斯位移较大。
The result showed that the fluorescence and stokes shift were increased with polarity of the solvents increa…
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