螯合

Category Ⅰ: lgβ〓=16～19, lgβ〓=28～32, lgβ〓＞32,Δ～12, such as solochrome violet RS and pyrocatechol violet, they can be employed for determination of Al〓 at pH 4～5, while at pH 8～9 the complex ability of reagents increased obviously, so it can be used for the determination of Al〓.

类试剂：累积稳定常数较大。lgβ〓＝16～19，lgβ〓＝28～32，lgβ〓＞32，△～12。如酸性媒染紫、邻苯二酚紫。该类试剂在酸性pH4～5下可测定无机单核铝，而在碱性pH8～9下测定总单核铝；由于lgβ〓均较大，易和铝形成螯合能力极强的1∶3配合物。

This is desired SO as not to compete with the mineral repletion done on the opposite date of treatment with the TD-DMPS tm.

这个原则主要是不要让DMPS去跟隔天补充的矿物质竞争结合，而减低了螯合汞离子的效果。

A lowering of toxicity after the composting process may be related to the degradation of organic pollutants (Semple et al., 2001) as well as other processes which can limit their bioavailability, such as sequestration (Alexander, 2000) or/and bound residue.

在堆肥处理后，毒性的减低可与有机污染物(Semple et al。， 2001)的降低以及其他能限制它们生物有效度的处理相关联，例如螯合作用(Alexander， 2000)或者/以及结合残留物。

Old growth forests, the study said, continue to sequester carbon for many centuries.

原始森林，这份研究报告说，继续碳螯合许多世纪。

Blood can back up in the spleen causing it to enlarge and sequester blood cells.

血液可以备份脾造成放大和螯合血细胞。

In addition, 90% by weight of the algae is captured carbon dioxide, which is "sequestered" by this process and so contributes significantly to the reduction of greenhouse gases.

在此外， 90 ％的重量藻类是被俘的二氧化碳，这是"螯合"这一进程，并因此大大有助于减少温室气体。

The reaction mechanism between citric acid and sodium dichromate, the structure of product chelate, and the performances of chromium-HPAM colloidal dispersion gel were studied.

研究了柠檬酸与重铬酸钠的反应历程、生成螯合物的结构以及Cr(上标 3+)-HPAM胶态分散体冻胶的性能。

Immobilized metal-chelated affinity chromatography column sorbents matched with Zn2+ were prepared for purifying glutathione using chitosan spherule as substrate.

以谷胱甘肽的酵母抽提液为原料，用自制的以壳聚糖小球为载体、Zn2+为配基的金属螯合亲和层析柱分离纯化谷胱甘肽。

Chelating resin in theminicolumns filling material be much more applied to preconcentration trace heavy elements,for that functionalization with much novel groups, that have advantages such as thatsynthesize simple, price unexpensive, biggish adsorption capability, interfere few, betterstability and strong conmbination with metal ions.

在微型柱的填充材料中高分子螯合树脂由于高分子效应又增添了许多新的功能，具有合成简便、价格低廉、吸附容量大、干扰少和稳定性好与金属离子的结合能力强等优点因而适用于从环境样品中选择性地富集痕量重金属离子。

A hydrolysis approach has been developed to prepare polyurushiol -SnO 2 hybrid film from urushiol-Sn polymer which is synthesized with urushiol and stannic chlorde.

先由漆酚和四氯化锡合成非螯合型漆酚锡聚合物，然后采用水解法由该聚合物与NaOH水溶液制得聚合漆酚-SnO2 杂化材料。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。