螯合剂

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 stu...

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。

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。

When EGTA (Ca〓 chelator), Verapmil and LaCl〓(Ca〓 channel blockers) were used to treat tomato fruit at green mature and strawberry fruit at white stage with ethylene, they could reverse ethylene-induced increase in ethylene production in tomato and strawberry, PG activity, lycopene content, soluble protein content in cell wall in tomato and degradation in soluble protein in strawberry, which indicated blocking Ca〓 channel in plasma membrane or chelating Ca〓 can decrease intracellular Ca〓, further inhibite ethylene-induced maturation, ripening and senescence of fruit.

用质膜钙通道阻断剂异博定、钙通道Ca〓竞争性抑制剂以及Ca〓专一性螯合剂与乙烯一起处理绿熟期番茄果实和乳白期草莓果实，均可抑制乙烯诱导番茄和草莓的乙烯生成、番茄PG活性的提高、番茄红素含量的增加和细胞壁可溶性蛋白含量的增加以及草莓可溶性蛋白的分解，表明阻断质膜Ca〓通道或螯合胞外Ca〓以减少胞内Ca〓能抑制乙烯对果实的催熟作用，间接证明乙烯对果实成熟衰老的诱导与胞外Ca〓内流引起的胞质Ca〓浓度的增加密切相关，表明乙烯信号转导可能与钙信使有关，调节胞质Ca〓浓度可调节乙烯对果实的催熟作用。

Results Daphnetin exhibited a modest iron-chelating ability compared with the powerful iron-chelator desferrioxamine B.

结果 与强铁螯合剂去铁胺相比，瑞香素具有中度的铁螯合能力。

The influence of several main process variables and some metals ions on pulp bleaching with formamidine sulphinic acid was investigated and discussed.

研究和讨论了一些主要过程参数的影响和某些金属离子对甲脒亚磺酸在纸浆漂白中的影响，同时对FAS漂白过程中添加螯合剂的作用做了深入研究，结果表明螯合剂的加入能改善FAS的漂白能力

Therefore, pretreatment of raw flax was performed with selected chelating agents such as ethylene diamine tetraacetic acid, sodium tripolyphosphate, oxalic acid and ammonium oxalate.

选用EDTA、多聚磷酸钠、草酸和草酸铵等螯合剂对亚麻原麻进行了预处理，结果表明：EDTA、草酸、多聚磷酸钠的处理效果均不理想，改变浓度、温度等条件，韧皮与麻秆并没有分离；而草酸铵是比较有效的螯合剂，用5 g/L的草酸铵在62℃处理亚麻原麻5 h后，韧皮与麻秆能够完全分离。

The maximum calcium dissovling value is 318.75mg/g which is larger than the maximum value of EDTA. ESA is confirmed to be an excellent chelator for calcium by the results.

通过反应条件的优化，得出ESA的最大钙螯合值为318.75mg/g，大于EDTA等螯合剂的最大钙螯合值，是一种络合能力极强的螯合剂。

This paper discussed the existing fractions of nickel in natural soil, transformation of nickel fractions in soil and the effect of organic chelators on phytoextraction and biomass.

本文讨论了土壤中镍的存在形态以及有机螯合剂对土壤中镍形态的影响，并从植物吸收Ni的机制出发，阐述有机螯合剂对植物吸收Ni和植物生物量的影响，分析了植物修复的螯合诱导技术的一些局限性，并对植物修复螯合诱导技术提出展望。

ALA is the only one of the common chelators which crosses the blood-brain-barrier, so you need to use ALA at some point in order to clear mercury from the brain.

ALA 是常用螯合剂中唯一能够穿越血－脑屏障的一种螯合剂。所以你应该在一定阶段使用 ALA 以清除大脑中的汞。

Moreover, the result about the inhibitory effect on ryanodine binding of concentrated chelators indicates that using proper concentrations of chelators is essential in ryanodine binding assays.

此外，高浓度螯合剂抑制ryanodine结合的结果还表明，在ryanodine结合实验中，使用的螯合剂浓度不能过高。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。