查询词典 chelation

Organic matter reduces effective content of ion of heavy metals through adsorption and chelation.

有机质通过吸附作用和螯合作用减少有效态重金属离子含量。

HARD1 protein was expressed by inducing with IPTG(1 mmol/L) and purified up to 95% through Ni2+ chelation affinity chromatography.

以纯化的重组蛋白免疫小鼠，制备了抗hARD1蛋白的抗血清。

Start heavy metal chelation while we're waiting for results.

Chase，等结果的时候按照重金属螯合疗法治疗

Therefore, the axially chiral monometallic or bimetallic complexes could be formed by the chelation-induction concept upon complexing process of axially achiral ligands.

因此通过金属配位诱导，在配位基团上手性元素的影响下得到轴手性金属配合物。

However, the formation of metal chelation at one or two side of biphenyl resulted a pair of enantiomers of monometallic or bimetallic complexes. Moreover, if the coordinating groups have chiral element (e.g., chiral oxazolines), the diastereomeric metal complexes will be formed.

而且，如果配位基团上带有手性元素，它们跟金属配位后得到一对非对映异构体，由于手性元素的影响，形成这一对非对映异构体的能量是有差异的。

The tetraoxazoline ligands only afforded the-configuration whether monometallic and/or bimetallic palladium complexes were formed upon the complexing process. Using the chelation-induced axially chiral palladium complex as a catalyst, excellent catalytic activities and enantioselectivities in the Wacker- type cyclization of allylphenols with up to 99% ee were gained.

当它与钯离子配位后只得到了轴构型为S的单金属或双金属配合物，并将该配体应用于钯催化的邻烯丙基苯酚的Wacker-type环化反应中，获得了很好催化活性和高达99% ee。

In animal models, depletion of lesion iron levels in vivo by phlebotomy, systemic iron chelation treatment or dietary iron restriction reduces lesion size and/or increases plaque stability.

在动物模型中，通过在活体内放血，全身心性铁螯合的处理或严格限制膳食铁的摄入等方法消耗病变中的铁水平，可以减少病变的大小和/或增加斑块稳定性。

The results of magnesium and calcium ions tolerance test indicated that the modified SPS, synthesized from the above two methods,has good chelation with magnesium and calcium ions for the crablike carboxyl and ester group and increase the reaction weight with magnesium and calcium ions for addition of hydrophilic group.Both of the two modified petroleum sulfonates could produce ultra-low interfacial tension at calcium and magnesium ions concentration lower than 600 mg/L,whereas the general petroleum sulfonates could only produce ultra-low value below 300 mg/L.

耐钙镁离子能力测试结果，以大庆炼化公司两种渣油为原料，采用上述两种合成方法制备的改性石油磺酸钠，由于产物中引入蟹爪状羧酯基，对钙镁离子有较强的螯合作用，同时增加了亲水基，增大了表面活性剂分子与钙镁离子的反应量，因而在600mg/L的钙镁离子溶液中获得10-3级的超低界面张力；而普通石油磺酸钠仅能在300mg/L的钙镁离子溶液中获得超低界面张力。

In the presence of suitable nickel catalyst and without the chelation effect of special designed dithioacetals, simple aliphatic dithioacetals could react with a series of Grignard reagents to give the corresponding olefinic products.

因此在适当的镍触媒存在下，脂肪族硫缩醛在不需要特别的螯合作用下，即可以与一系列的格林那试剂进行烯化反应。

And the chelation-enhanced fluorescence effect of tripodal naphthylethylamide derivative appeared when it was complexed with transition metal ions such as Cu〓 which have quenching potential.

其原因在于络合的过渡金属离子抑制了化合物的PET和化合物的三足结构又屏蔽了过渡金属离子对荧光体的直接猝灭作用。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。