查询词典 ion-pair

Chelate fiber with amidoxime group,which is obtained from chemical modification of PAN fiber,is treated with mercury nitrate to prepare anion-exchange fiber.The optimum conditions of the anion-exchange fiber absorption of the thiocyanate ion,such as ion concentration,time,the pH value were studied.

以聚丙烯腈纤维进行NH2OH化学改性制得的含有偕胺肟基的螯合纤维为原料，经Hg(NO3)2化学处理，制得阴离子交换纤维；并以硫氰酸根离子为研究对象，系统地探讨和研究了阴离子交换纤维吸附硫氰酸根离子的最佳条件参数：离子浓度、时间、pH值等。

The experiment was in progress in dyadic foam of intermittence flotation tower,to the positive ion type,the negative ion type,type and amphiprotic type,etc.

结果：泡沫浮选法去除废水中铬离子的表面活性剂，阳离子型和非离子型表面活性剂效果最差，阴离子表面活性剂效果最好。

A systematic study of Fe-ion doping in nanosized TiO2 is performed by measuring their photoreactivies in deradation of benzophenol. The presence of Fe-ion in the TiO2 crystalline significantly influences photoreactivity.

本文采用氙灯模拟日光条件，分别以汞灯和氙灯为光源，系统的研究了掺杂铁离子的二氧化钛纳米粉对苯酚光催化降解规律，发现有铁离子存在的纳米粉降解效果显著提高。

The results showed that loading Ag^＋, Ni^2＋, Cu^2＋ or Zn^2＋ ion on the activated carbon obviously improved its adsorption of benzothiophene, while loading Fe^3＋ or Co^3＋ ion on the activated carbon caused a decrease in its adsorption of benzothiophene in comparison with the original unloaded activated carbon, which was due to the variation of the nature of soft and hard acid on the surface of the activated carbon.

采用密度泛函数理论法计算结果表明，苯并噻吩的电负性χ为2.638，属软碱类物质；由于Ag^＋为软酸，活性炭负载Ag^＋离子，增加了其局部表面的软酸，从而增强了对苯并噻吩硫化物的吸附；由于Ni^2＋、Cu^2＋和Zn^2＋离子属交界酸，负载Ni^2＋、Cu^2＋、Zn^2＋离子增加了活性炭表面的交界酸，也在一定程度上提高了其表面对苯并噻吩硫化物的吸附；当活性炭表面负载了硬酸性Fe^3＋或Co^3＋离子，其局部表面硬酸增大从而降低了其对苯并噻吩的吸附。

The substituted group on the bipyridyl ligand in complex 2 could lose C2H4 neutral molecule under a higher CID fragmentation (such as CID 110 V), and its single charge ion is more stable than its double charge ion.

而络合物2在较高的CID电压下(1l0V)会发生联吡啶环上取代基的中性C2H4小分子丢失，其单电荷离子比二价电荷离子稳定。

Base frequency of the buncher is 6 MHz, it can be used in bunching light ion beams as p or D, as well as heavy ion beams up to Cs, with beam utilization efficiency of 50 %—60 %, and pulsed beam width of light ions less than 1 ns.

聚束器基频为6MHz，可以对质子、氘直至铯等所有离子束进行脉冲聚束，束流利用效率可达50％—60％，质子等轻离子脉冲束的脉冲时间宽度小于1ns。

Electrochemical oscillation of lead electrode in sulfuric acid has been explored with in-situ ellipsometry.Effects of improvement of electrodes properties are affected by increase or decrease of surface temperature of the samples badly during ion implantation. Some theories and methods on substance diffusion transfer have been applied to calorifics to obtain mathematical relation between the surface temperature on the samples and operation time during ion implantation.

掠射式椭圆偏振方法是本论文提出的一种全新的研究方法，为验证这种现场研究方法的可行性，本论文选择了几个用其它方法研究较为成熟的电化学体系并结合本论文研究的化学电源体系，以掠射式椭圆偏振技术进行研究，提出了改良镍电极、锌电极、铝电极和铜电极性能的具体措施或者理解这些电极表面性质和涉及它们的电极过程的实验依据，为使用这些电极的化学电源性能的提高奠定了基础。

Investigation of the Iron Ion Pre- mordant Process in the Dying of Natural Dyes;2. Study on cotton fabrics ecological dyeing process with cork tree bark based on loess mordant ;3. Cotton fabrics were dyed with natural carminic acid after the Ti ion pre- mordant treatment.

将钛离子前媒处理后的棉织物，采用天然染料胭脂虫酸进行染色，以棉织物的K/S、H*值进行表征，对媒染剂浓度、温度、时间3个因素进行了单因素工艺实验，得到了钛离子前媒处理的最佳工艺参数(媒染剂浓度9×10-3 mol/L，50℃，40 min)。

The system can endure the change of chloric ion concentration by increasing from 8 500 mg/L to 12 500 mg/L or decreasing from 8 500 mg/L to 4 500 mg/L, and it is more tolerant to the sudden increase than that of the sudden decrease of chloric ion concentration.

系统能够忍受氯离子浓度从8 500 mg/L直接升到12 500 mg/L和从8 500 mg/L直接降低到4 500 mg/L的变化，且抗氯离子浓度突然升高的能力比抗氯离子浓度突然降低的能力要强。

The ion exchange material facilitates the generation of chlorous acid by simultaneously removing unwanted cations from solution and andding hydrogen ion to solution.

所述离子交换材料通过同时从溶液中脱除不想要的阳离子并向溶液中加入氢离子而有利于产生亚氯酸。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。