ion pair


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ion pair

[′ī‚än ‚per]
(nucleonics)
A positive ion and an equal-charge negative ion, usually an electron, that are produced by the action of radiation on a neutral atom or molecule.
References in periodicals archive ?
They have many substantial advantages as compared to ionic bases, such as milder reaction conditions, enhanced reactivity of the more naked anions in the poorly associating ion pairs formed, and better solubility [28-30].
The indicator scale of cesium ion pairs in tetrahydrofuran.
When EC due to ion pairs was included in the evaluation, the regression coefficients, shown in the third and fourth columns in Table 6, hardly changed.
Adenosine, uridine, and thymidine produced ions that corresponded to the ion pairs of adenine, uracil, and thymine, respectively.
There was no cross-talk between ion pairs originating from different analytes or between analytes and the corresponding internal standards.
The advantage of using ion pair chromatography compared with anion-exchange chromatography is that other neutral and cationic arsenic species can also be separated by ion pair chromatography [23, 24, 35, 45, 47].
For TiK[alpha] (which has an energy of about 4510 eV) there would be about half the counter pulse amplitude, or 217 ion pairs.
1), describes the morphology of random ionomers as follows: Ionic groups phase separate from the nonpolar polymer to form aggregates of 2-8 ion pairs, termed multiplets.
ion pairs m/z 425/431 for 3-OH-C18:2 and m/z 427/431 for 3-OH-C18:1 and then m/z 233/235 for each to estimate these concentrations.
For MRM, we used the doubly charged precursor and singly charged product ion pairs of m/z 347/237 (where 237 is an [[alpha].
The calibration curves for Hcy quantification were obtained by plotting the peak area ratio for the m/z 136 [right arrow] 90:140 [right arrow] 94 ion pairs vs the concentration of tHcy (in the range 3.
The calibration curves for homocysteine quantification were obtained by plotting the peak area ratio for the m/z 234:238, m/z 218:222, and m/z 307:311 ion pairs, respectively, vs the concentration of tHcy (in the range 0.