查询词典 chelating

In some embodiments where adhesion and alkali removability need to be independently controlled it is preferable that the carrier vehicle comprises two or more types of metal chelating groups wherein at least one of the metal chelating groups is an acid group and at least one of the metal chelating groups is not an acid group.

在有些体现在附着力和碱取出需要独立控制，这是可取的，承运人车辆由两个或两个以上的金属类型螯合组其中至少有金属螯合集团之一，是一种酸组和至少一个金属螯合组不是一个酸组。

A review was presented of application of various chelating agents, such as EDTA、EDDS, to heavy-metal contaminated soils to stimulate phytoremediation of the soil in recent years. In addition, an introduction was made to the development of a new decomposable chelating agent, EDDS, and in the last part some existing problems were discussed and foci of the future study were prospected.

本文综合介绍了近年来EDTA等多种螯合剂在植物修复重金属污染土壤中的应用，同时介绍了一种新型易降解的螯合剂EDDS的研究进展，最后对存在的问题进行了讨论，并对未来的研究重点进行了展望。

New ruthenium benzylidene complexes benzylidene[1,3-bis(2,6-dimethylphenyl)-4,5-dihydroimidazol-2-ylidene] [k~2-diphenylphosphinoacetato] monochlororuthenium (46), benzylidene[1,3-bis(2,6-dimethylphenyl)-4,5-dihydroimidazol-2-ylidene][k~2-3-propionato]monochlororuthenium (47), benzylidene[1,3-bis(2,6-dimethylphenyl)-4,5-dihydroimidazol-2-ylidene] [k~2-2-benzonato]monochlororuthenium (48) featured five-membered, flexible six-membered and rigidsix-membered chelating rings respectively are prepared by reactions of complex 41 withcorresponding sodium phosphino-carboxylates. It is confirmed by X-ray crystallographicanalysis that the coordination geometries of complexes 46 and 47 are distorted squarepyramids with phosphino-carboxylate ligands chelating to ruthenium, and the coordinationbetween ruthenium and benzylidene ligands are strengthened.

用二苯基瞵乙酸盐、二苯基膦丙酸盐、二苯基膦苯甲酸盐与钌卡宾配合物41反应合成了三个新的钌卡宾配合物：含五元膦-氧螯合环的1，3-二-(2，6-二甲苯基)-4，5-二氢咪唑基1-苯亚甲基--一氯合钌(46)、含六元柔性膦-氧螯合环的[1，3-二-(2，6-二甲苯基)-4，5-二氢咪唑基1-苯亚甲基--一氯合钌(47)及含六元刚性膦-氧螯合环的[1，3-二-(2，6-二甲苯基)-4，5-二氢咪唑基]-苯亚甲基--一氯合钌(48)。X射线单晶衍射分析证明，配合物46、47都为变形的四方锥构型，膦-氧与钌形成螯合配位，其中苯亚甲基与钌的配位得以加强。

It is considered that the carboxylic groups coordinate to the metal ions in four modes: monodentate, the chelating bidentate, the bridging bidentate, and thebridging-chelating tridentate.

一般认为羧酸基有四种配位方式：单齿、螯合双齿、桥联双齿和螯合桥联三齿。

Where more than one metal chelating group is used the metal chelating groups may be the same or different.

如果有一个以上的金属螯合组用于金属螯合组可以在相同或不同的。

Resins containing at least one metal chelating group can be readily prepared by the polymerisation of monomers wherein at least one of the monomers contains one or more metal chelating groups.

树脂含有至少一种金属螯合组可以很容易编写的单体聚合其中至少单体一个包含一个或多个金属螯合组。

As support, Agarose can benot only used in normal condition, but also in denaturalization (for example, 6 mol/Lhydrochloric acid carbamidine or 8 mol/L urea). Herein, the preparation of IMACmatrixes were conducted using agarose as support, carboxymethylated aspartate as chelating ligand and Co~(2+) and Ni~(2+) as chelating center ions.

本实验用琼脂糖作为基质，选用四配位，与金属离子有较强作用力的羧甲基天冬氨酸为配基，以Co~(2+)、Ni~(2+)作为螯合金属离子，合成了一系列金属螯合亲和色谱填料，并对其蛋白质分离性能进行了研究。

The present invention provides a preparation method of poly N-2-carboxyethyl pyrrole metal chelating nanometer pipe used as affinity absorbing medium.

提供一种用作亲和吸附介质的聚N-2-羧乙基吡咯金属螯合纳米管的制备方法。

A preparation method of poly N-2-carboxyethyl pyrrole metal chelating nanometer pipe used as affinity absorbing medium relates to an affinity absorbing medium material.

用作亲和吸附介质的聚N-2-羧乙基吡咯金属螯合纳米管的制备方法，涉及一种亲和吸附的介质材料。

Phytates,the salt form of PA chelating with cations such as K~+, Ca~(2+),Mg~(2+),Zn~(2+) and so on,are mostly accumulated in the aleurone and embryo part of cereal seeds.

植酸是作物种子中含磷最丰富的化合物，占种子干重的1%以上，种子全磷含量的65%-85%和酸溶性肌醇磷酸盐的90%以上，易与K~+、Ca~(2+)、Mg~(2+)和Zn~(2+)等金属离子螯合形成植酸盐，主要沉积在作物的糊粉层和胚中。

In contrast to the ubiquitous rising-sun-with-rays military flag of the Japanese, Chinese banners and ensigns feature a range of designs.

与遍地都是的太阳军旗不同，中国人的旗帜和徽章设计得各式各样。

From their small corner of Feng's Guangzhou headquarters -- a jumble of pink leashes, squeezable rubber steaks, and plastic doggy Santas for Fido's stocking -- Soleil's designers come up with at least five new products a month.

从Feng 设在广州总部的产品展示柜台上可以看到，Soleil的设计师每月至少设计出5件新产品。