查询词典 affinity

After nucleosides were extracted from urine on phenyl boronic acid affinity chromatography, the analysis was performed on a column (4.6 mm i.d.X250 mm, 5 μm) at 22 ℃ using a lineargradient elution comprising 25 mmol/L KH2PO4 solution (pH 4.55) and 60% methanol in water with UV detection at 260 nm.

通过苯基硼酸亲和色谱法提取尿中核苷，在色谱柱(4.6 mm i.d.X250 mm， 5 μm)上以25 mmol/L磷酸二氢钾溶液(pH 4.55)和60%的甲醇水溶液作为流动相进行二元梯度淋洗，于22 ℃下进行反相色谱分离，260 nm处紫外检测。

Due to its high affinity for diols, boronic acid group is frequently used for recognizing carbohydrate and marking cell since the carbohydrate contains polyhydroxy.

由于糖含有多个羟基，含硼酸基的有机物与二醇间有强烈结合作用，故硼酸基团常用于糖类识别和细胞标记。

According to the result, we believed that the reason resulted in the low sensitivity was that the marker residue compound MQCA structure has changed after conjugated with protein and the antibody induced by the conjugation could not recognize the free MQCA in the ci-ELISA. Therefore we designed some hapten which could reserve the marker residue structural speciality mostly. After synthesis route selection and optimum, the hapten 7-Hydroxymethyl-3-methyl-quinoxaline-2-carboxylic acid was synthesized, used 4-methyl-2-nitroaniline as the start material via six steps, such as oxidation cyclization, bromize reaction, hydrolysis, Beirut reaction, reduction, hydrolysis. This work established basis for producing the high affinity antibody and developing the sensitive ELISA residue detection method.

本论文认为导致ELISA检测灵敏度较低的原因，是残留标示物和蛋白偶联后的特征结构发生改变，诱导产生的抗体不能够对游离MQCA很好的识别，因此，本论文设计了能够最大化保留MQCA结构特征的系列半抗原结构，并对其合成路线进行了筛选和优化，最终以对甲基邻硝基苯胺为起始原料，经氧化环化、溴代、水解、Beirut缩合、还原、水解六步反应制备含羟甲基结构的MQCA衍生物7-羟基甲基-3-甲基-喹噁啉-2-羧酸，为制备对游离残留标示物高亲和力的抗体，高灵敏度的ELISA残留检测方法的建立奠定基础。

The modified QCM sensors were used to recognize the butylamine isomers in gas. The results showed that the QCM coated with both compounds had preferential affinity to n -butylamine, then i -butylamine, t -butylamine in the range of low concentrations, indicating that in the recognition process, the steric hindrance effect played an important role when forming complex with guest molecules.

修饰的QCM传感器用于识别气相中不同的丁胺异构体，结果发现，在小浓度范围之内上述两种化合物修饰的QCM均优先吸附正丁胺，之后依次为异丁胺和叔丁胺，表明在形成主客体化合物的识别过程中，空间位阻效应是一个重要因素；当分析物浓度增大时，丁胺的极性和磁性成为分子识别的主要因素。

The high-affinity binding of ~125I-triiodothyronirie to the nuclear extracts was demonstrated, and Ka of TRs in MG63 cell line and in rat calvaria we...

另外MG63和骨组织中TRs的MBC也存在一定差别，提示体外培养的人类成骨样细胞系中TRs数量可能减少。

For example, P-gp has a low affinity for verapamil, thus requiring cardiotoxic levels for full modulator activity.

例如，P-9p对维拉帕米具有低的亲和性，因此需要心脏中毒水平才能实现全部的调节活性。

Compared to BMVC,9E-BHVC has many better features needed by a two-photon probe,such as larger two-photon action cross sections,stronger affinity to DNA and better water-solubility.These excellent properties of 9E-BHVC all mentioned above imply that it would be a true two-photon nucleic acid fluorescent probe if it can specially recognize the DNA in complex cellulous environment.So this dissertation has investigated the ability of 9E-BHVC on the cell nucleus imaging detaily.

与BMVC相比，9E-BHVC表现出作为双光子荧光探针更好的特性，例如具有更大的活性吸收截面和更高的结合常数，且具有更好的水溶性。9E-BHVC这些优良的性质预示着该分子如果能够在复杂的细胞环境中特异性地识别DNA，那么它将是真正意义的双光子核成像探针。

Its taxonomic position, as understood by various authors, was very obscure—from a mere section in Chenopodium to the sole genus of a separate family Dysphaniaceae—but its close affinity to "glandular" species of Chenopodium s.l.

它的分类的位置，象由各种各样的作者理解的那样，很不明显——从Chenopodium的仅一个组到单独属的科Dysphaniaceae——但它很明显与具&腺&的种Chenopodium s.l。

Finally the two phylogenetic trees were compared and the phylogenetic affinity between the 16 species of the genus Chlamydomonas was analysed.

初步尝试以ITS分子序列系统发育分析作为传统性状分析的补充来研究衣藻种间的亲缘关系。

the objective of the thesis is to research the effects of aerobic exer cise and dietary control on the affinity of insulin receptor of skeletal muscles of diabetic rats.

小 摘要：目的：研究有氧运动和膳食控制对2型糖尿病大鼠骨骼肌胰岛素受体亲和力的影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。