查询词典 cation

The modified nanofiltration showed a good retention to salts and the retention of the membrane to high valent cation and low valent cation was 95% and 65%, respectively.

荷正电纳滤膜对盐溶液有很好的截留，对盐溶液中的高价阳离子和低价阳离子的截留率分别为95%和65%。

In addition to complex anion crowd carried by organic functional group, there were many kinds of mass point like aluminum, silicon, zinc and rare earth elements et al in composite elastic material, and there were replaceable cation as well as anion; besides, all cation kept rather distant each other. It was not easy to crystalize in composite elastomer because of the block of organic molecule.

在复合弹性体材料中，除了存在有机官能团所带有的络阴离子群之外，还同时存在铝、硅、锌和稀土元素等多种质点；存在可以置换的阳离子和阴离子，并且各种阳离子都保持相当远距离；由于有机分子的阻挡，复合弹性体内不易析晶。

Through a variety of resin filter, adsorption and elution conditions for the optimization, as well as decolorization, crystallization methods of research, this article eventually determine the strong acid cation resin HZ-001 which is at pH 3, 3BV / h, having the largest adsorption to the tryptophan; the fermentation broth were centrifuged to remove sediment,then treated with activated carbon to be decolored and then treated with strong acid cation resin HZ-001. After that,2mol/l amino acid were passed through the HZ-001 ion exchanging column,kept almost constants when the flow rate stayed 6 BV / h. At 60℃,it was condensed into the saturated state and then added Ethanol until its percentage reaching 30%. At 4 ℃ under 100rpm placed in the shaker 20h, the collection of L-tryptophan was dried up in vacuo.

本文通过对种树脂的筛选、吸附和洗脱条件的优化，以及对脱色、结晶方法的研究与摸索，最终确定强酸型阳离子树脂HZ-001在pH=3，3倍床体积流速，温度室温，对色氨酸有最大的吸附作用；将发酵液离心去沉淀并用活性炭脱色后通过HZ-001强酸型阳离子交换树脂柱，再用2mol/L的氨水6倍床体积流速在室温下进行洗脱，收集洗脱液，60℃浓缩为过饱和状态后加入30%无水乙醇，4℃下100rpm摇起晶20h，过滤搜集结晶并真空干燥得白色粉片状L-色氨酸晶体。

On the basis of the Zeolite catalyst which is fit to lignin methylolation had been synthesized. Its elemental composition formula is (1～5) M〓: Al〓O〓:(1～10) SiO〓:(0～10) H〓O (M represents an exchangeable cation, n represents the valance of cation), the pore diameter is among 3～13〓.

在此基础上合成出了适合木素羟甲基化反应的沸石催化剂，其化学组成通式为（1～5）M〓∶Al〓O〓∶（1～10）SiO〓∶（0～10）H〓O（M指一种可交换的阳离子，n为阳离子的价数），孔径在3～13〓间。

Sythesis and application of chlorostyrene-DVB strongly acidic cation exchange resin ;2. For this study,a series of poly( p -amino styrenes) with various amounts of supported hydrogen chloride,and a series of strongly acidic cation exchange resin s with various exchange capacity were synthesized,and their catalytic property for ketalization of cyclohexanone and glycol were investigated.

通过测定固载了不同量的氯化氢的聚和不同交换量的强酸性阳离子交换树脂催化的环己酮与乙二醇的缩酮化反应缩酮的收率，研究了聚合物固体酸催化剂的疏水性对其催化缩酮化反应性能的影响；发现在一定范围内增加催化剂的疏水性，可提高缩酮化反应的收率。

As x was increased, the transition of B-site cation ordered perovskites from 1:2 (x = 0) to 1:1 (x = 0.1) and disordered (x = 0.5) types was observed and related to the variation in the proportion of cation-oxygen octahedra.

此有序结构相转换与各阳离子之氧八面体之比率的变化有关。1：2 有序程度主导 x = 0 ~ 0.10 之 Qxf 值随著 x 的增加而降低的趋势。

The results show that HY exchanged with alkali-earth metal cation or rare-earth metal cation has higher stability than that of HY.

结果表明，用碱土金属离子或稀土金属离子交换改性的HY分子筛在烷基化反应中具有比HY更好的稳定性。

The column test results show that the cation exchange adsorption mainly manifests the K(superscript +) and Ca(superscript 2+) exchange in three kinds of typical soil medium, and the cation exchange function compares the sandy gravel column and the fine sand column is more remarkable in the silty clay column.

测试结果分析表明，在3种典型土壤介质中，阳离子交换吸附作用主要体现为K与Ca(上标 2+)之间的交换，且粉质粘土柱中阳离子的离子交换作用较砾石含砂柱和细砂柱更为显著。

The effect of three common hydro-chemical factors,such as univalent cation concentration(Na+ ion concentration),bivalent cation concentration(Ca2+ ion concentration) and pH value on clay particles releasing in sand column was studied through batch test.

通过批量试验，对一价阳离子浓度，二价阳离子等，浓度(Ca2+浓度)和pH值三个最常见水化学因素对砂柱中粘土颗粒释放的影响进行了研究。

The column test results show that the cation exchange adsorption mainly manifests the K+and Ca2+ exchange in three kinds of typical soil medium, and the cation exchange function compares the sandy gravel column and the fine sand column is more remarkable in the silty clay column.

测试结果分析表明，在3种典型土壤介质中，阳离子交换吸附作用主要体现为K+与Ca2+之间的交换，且粉质粘土柱中阳离子的离子交换作用较砾石含砂柱和细砂柱更为显著。

These are places without aristocratic baggage; egalitarian places open to talent, self-improving, engaged in learning and innovation through networks that were at once competitive and cooperative.

这些地方没有贵族遗风作祟，而且对于那些有天分的人是开放的平等之地，这些人善于通过那些曾经很具有竞争力与合作精神的关系网进行自我提高以及学习创新。

Christine: You don't want to see me?

你不想见我？