Counter-ions in ion-pair

Table 4.4 Relationship between analytes and counter-ions in ion-pair liquid chromatography...

S.O. Jansson, Effect of counter-ions in ion-pair liquid chromatography of hydrophobic amines on non-polar bonded phases , J. Liq. Chromatogr., 1982, 5, 677. 

Counter-ion in ion pair chromatography, the ion of opposite charge to the component which forms a neutral ion pair that can be separated by reverse phase HPLC, also in ion chromatography the counter ion in solution that displaces the sample ion from the stationary phase. 

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