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The dechroming mechanism of organic acid from chrome shavings was studied from the following aspects,the depolymerization of complex compound,the replacement of H+ and the replacement of organic acid radical anion.

从络合物解聚、氢离子取代和有机酸根阴离子取代3个方面，探讨了有机酸的脱铬机理，认为氢离子的取代和有机酸阴离子的取代起主要作用。

With the addition of MgCl2, NPEO form the adduct of (superscript +).

样品中的钠、钾离子的浓度影响对应加合离子的谱峰强度。

We researched on relationship of ion characteristic and retention value with retention value equation of ion chromatography .

本文通过离子色谱的保留值方程研究了离子的特征参数与色谱保留值之间的关系。

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 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。

Secondary ion emissions from carbon nanotubes under bombardments of MeV Si and Si2 clusters are measured by using TOF.

利用飞行时间法研究了碳纳米管在不同能量的Si和Si2团簇离子轰击下氢二次离子的发射。

Secondly, the basic structure of IMS, especially the core component—drift tube is discussed.

简要介绍了IMS中离子的形成过程即IMS的基本原理，论述了IMS离子迁移率理论和仪器分辨率。

The ion mobility was measured at different temperatures and the effects of the temperature in drift tube on the variety and yield of the reactant ions and product ions were discussed.

离子迁移率、反应物离子的种类和产量与漂移管工作温度有很大的关系。

In this paper,Monte Carlo method is used to simulate the motion of ions in the cathode fall zone of glow discharge.Energy distributions and angle distributions for different pressures and voltages are presented.

本文利用蒙特卡罗方法，模拟了氩气辉光放电鞘层内离子的运动过程，得到了不同气压和不同放电电压下离子入射阴极的能量分布和角度分布。

The influence of transition metal cation dissolved in DMSO on the generation of superoxide anion radical was also investigated.

论文还系统研究了DMSO中微量过渡金属离子的存在对DMSO／NaOH体系产生超氧孤离子自由基的影响。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新