查询词典 chelating

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。

The synthetic of high performance chelating resin and the study of ion exchange equipment will be two research topics in the future.

提出利用离子交换法处理低浓度金属离子废水易于实现工业化和自动化，是将来的发展趋势，其中高性能树脂的合成以及离子交换设备研究是以后的两大研究方向。

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。

Using the chelating reagents with suitable structure and activity as activator of ilmenite and wolframite, the collector consumption will reduce by 60-80% and the total consumption of reagents is less than 20mg/l.

钛铁矿和黑钨矿细泥采用适当的有机螯合剂作活化剂，药剂总耗量可下降到45mg/L以下，用药量可降低60~80%。

The precursor solutions of titanium alkoxide with different amount of AcAc were characterized by DTA to study the chelating process of titanium alkoxide with AcAc.

对含有不同量乙酰丙酮的前驱体溶液做了热重分析，研究了钛酸丁酯与乙酰丙酮的螯合过程。

From the point of ion exchange and chelating ,the high adsorption selectivity was investigated by the peculary structure of amidoxime fiber(combined with crosslinking structure and the maximal conversion of cyano) and Au ion.

从离子交换和螯合吸附的角度，根据偕胺肟基纤维本身的交联结构和最大氰基转化特点以及金离子本身的结构特点对其高选择吸附性能进行了解析。

A chelating fiber with amidoxime functional groups had been prepared from PAN fibers through processes of pre-treatment, crosslinkage and modification.

0引言偕胺肟基螯合剂由于对某些贵重金属[1]、稀土金属[2]具有良好的吸附作用，已成为人们研究的重点。

chelating fiber with amidoxime group, synthesis, structure, property

第二种合成路线得到的偕胺肟基纤维氰基转化率可到100%，但合成路线要经过引发剂引发、丙烯腈单体接枝两步之后，才能进行偕胺肟化。

Polyacrylonitrile fiber was modified into a chelating fiber containing amidoxime group by adding hydroxylamine, resulting from that nitrile group was transformed into amidoxime group.

以聚丙烯腈纤维为原料，加入羟胺试剂，将腈基转变为偕胺肟基团，使聚丙烯腈纤维改性成含有偕胺肟基团的螫合纤维。

Different from conventional fabrication of cathode powder, non-chelating polymer polvinyl alcohol serves to sterically entrap the metal cationa in a manner thewey which facilitates the formation of an atomistically homogeneous precursor material. And, calcining the solid precursor material to form a mixed metal oxide material, that is perovskite structured powder La0.5Sr0.2Co0.5Fe0.5O3.

该方法与传统方法不同，采用非螯合聚合物－聚乙烯醇(PVA， Polvinyl alcohol)作为阳离子的载体，形成含有La(上标 3+)，Sr(上标 2+)，Co(上标2+)，Fe(上标 3+) 4种金属阳离子和非螯合聚合物的均匀溶胶，干燥生成固体凝胶状前驱体。

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。