离子

The MS showed that the ratio of relative abundance ratio of two main Se isotopes is about 2:1, which can give important information for identifying molecular or fragile ions of selenium.

所有化合物均可获得特徵质谱，表现出含单个硒原子的分子离子或碎片离子特徵峰簇，硒的两种主要同位素在峰簇中表现为主要峰M与(M-2)的相对丰度比约为2：1，可为鉴定含硒分子离子或碎片离子提供重要信息。

Arenedisulfonates have much stronger coordination ability to alkali, alkaline earth than to transition metal ions.

芳烃二磺酸根离子与碱金属离子和碱土金属离子的配位能力比过渡金属离子强。

The anion-exchange ion chromatography is suitable for the separation and analysis of alkaline earth metal ions, transition metal ions and rare earth metal ions.

综述了离子色谱法分析金属离子的研究进展，对目前应用于分析金属离子的阳离子交换IC、阴离子交换IC和螯合离子色谱进行了评述。

The research progress on the formation of ordered molecular assembly in imidazolium ILs, such as liquid crystal, micelle, vesicle, microemulsion was reviewed. ILs can act as solvents, co-solvents, or surfactants to form liquid crystals. They also can be substituted for polar, apolar, or surfactant components in microemulsion to prepare various microemulsion systems ILs-in-oil, oil-in-ILs and bicontinuous B.

咪唑类离子液体可以作为溶剂、助溶剂和表面活性剂形成液晶；离子液体可以分别取代微乳液体系中的极性组分、非极性组分或表面活性剂，形成油包离子液体、离子液体包油和双连续的新型微乳液体系。

The scintillation CsI was also calibrated with protons of 15, 20, 23MeV. The average energy calibration is 1. 047MeV per channel. Energy calibration for heavy ions was completed with multiplication factor 1/12. 75. The energy calibration is around 1. 1MeV per channel for oxygen ion and iron ions when energy deposition is less than 50MeV in each detector.

对铁离子而言，铁离子的四个能量点在ΔE〓探测器中的能量均超过50MeV，能量信号放大电路此时已进入饱和状态，当铁束能量为120MeV时，离子进入到ΔE〓探测器中，此时在ΔE〓中能量沉积低于50MeV，没有达到电子学系统的饱和值，能量刻度每道为1.1MeV／道，这些与氧离子的标定结果是一致的，饱和只是对于低能重粒子会出现这种情况，对于中高能重离子这种现象就会消失。

For chay and Radix Lithospermi, the assistance of low concentration iron ion was greater to complexing impression.

铜离子和铁离子浓度变化对洋葱和紫草的影响曲线变化最为显著，而茜草、紫草以低浓度亚铁离子处理时，对络合效果帮助较大；锡离子浓度的高低对茜草染色并无影响，对洋葱染色的影响变化较大。

Structures of Na~+-AD ion-complexes with 1 or 2 H2O molecules were obtained. It was found that H2O can bond with Na~+ in the structure of Na~+-AD to form Na-O van der Waals bond. H2O molecule can also bond with N or O atoms in AD moiety to form H-bonds as N-H…Ow or O…Hw-Ow. The former process takes place more easily. The most stable structures of Na~+-AD ion-complexes with 1 and 2 H2O molecules are W-C7AB and 2W-C7AB, respectively.αB conformer of Na~+-AD can not exist in the presence of 2 H2O molecules.

研究发现水分子可以结合在Na~+-AD络合离子中的Na~+附近形成Na-OW范德华键，也可以与Na~+-AD络合离子骨架结构中电负性较强的N或O原子结合形成N-H…OW或O…HW-OW氢键，相对而言，水分子更容易结合在Na~+-AD络合离子中的Na~+位置，Na~+-AD最稳定的带1个或2个水分子的结构分别为W-C7AB和2W-C7AB，Na~+-AD络合离子的αB构象在2分子水存在的情况下完全消失。

Pursuit of enterprise management philosophy, professional production of a full range of equipment in addition to static electricity, the main products are: desktop-ion air-cooled condenser, horizontal ion fan, hanging fan ion, ion wind gun, ion Wind mouth stick products such as static electricity.

公司秉承：&客户的要求，就是我们的追求&的企业经营理念，专业生产出全系列除静电设备，主要产品有：台式离子风机、卧式离子风机、悬挂式离子风机、离子风枪、离子风嘴、静电棒等产品。

To improve the stability and the depth of the pseudo-potential well of the ion trap, two sets of RF sources and the corresponding detection circuits were designed and implemented in a Paul trap. With the implementation, absorbed signals of 199Hg(superscript +) and N(superscript + subscript 2) were detected from trapped ions.

为了满足离子囚禁稳定性以及提高离子囚禁势阱深度，设计和制作出两套囚禁离子的射频源和射频共振吸收检测电路，利用不同频率的射频源及相应检测电路在双曲线型离子阱实验装置中成功地囚禁了199Hg和N(上标+下标 2)离子得到了它们的射频共振吸收信号。

The DS4G ion engine utilises a different concept first proposed in 2001 by David Fearn, a pioneer of ion propulsion in the UK, which solves this limitation by performing a two-stage process to decouple the extraction and acceleration of ions using four grids.

DS4G离子引擎应用了与传统离子引擎不同的概念，这个概念是由英国离子推进学的先驱戴维-福恩在2001年提出的。他使用了4个栅格来解决传统离子引擎存在的不足，即分两阶段来减弱离子的吸引和加速度。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。