ion pair

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ion pair

Two particles of opposite charge, usually an electron and a proton.
See also: pair


an atom or group of atoms having a positive (cation) or negative (anion) electric charge by virtue of having gained or lost one or more electrons. Substances forming ions are electrolytes.

ion channel
see channel.
dipolar ion
hydrogen ion
the positively charged hydrogen atom (H+), present to excess in acid solutions.
ion pair
the pair of ions created when an atom has had an electron removed by ionizing radiation.
ion pump
see calcium pump, sodium pump.
ion trapping
a strategy for treatment of poisonings based on the principle that cell membranes are less permeable to ionized compounds. With knowledge of the characteristics of the toxin, treatment can be given to alter the acid-base balance in favor of ionization.
References in periodicals archive ?
This observation may be explained by the fact that there are more ionic species in solution than those considered for the regression analysis, for example ion pairs or soluble organic matter.
Each metabolite displayed specific ion pairs and characteristic retention times (Table 1).
Determination of tissue folate composition by affinity chromatography followed by high-pressure ion pair liquid chromatography.
When this lower concentration of organic modifier is used in ion pair chromatography, interference from complex sample matrix can be a problem.
Experimentally determined structures of small contact ion pairs in solution are very rare and sometimes lacking in complete research fields.
Canfield (a biologist with the US Federal Aviation Administration's Civil Aerospace Medical Institute in Oklahoma) describe the analysis technique, emphasizing the importance of choosing an appropriate analogue to get the quality of ion pairs necessary for accurate measurement.
Ion pairs Nvidia's GeForce 9400M GPU with Intel's Atom CPU for a CPU to work alongside a GPU, and Lenovo has announced it will put the Ion platform in its IdeaPad S12 netbook.
Mirkin and Oh have also tweaked the optical properties of particles incorporating metal ion pairs.
4] ion pairs on average per neutron absorbed, that were collected on charge collecting plates divided into independent quadrants.
New chapters and discussions consider supramolecular polymers, microfabrication, nanoparticles, chemical emergence, metal-organic frameworks, ion pairs, gel, ionic liquids, catalysis, molecular electronics, and other matters.