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The use of a bivalent counter anion to control the effective mobility of the hydrogen ion constituent in cationic isotachophoresis
Author(s) -
Sudor Ján,
Stránský Zdeněk,
Chmela Zdeněk,
Boček Petr
Publication year - 1988
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.1150091202
Subject(s) - isotachophoresis , electrolyte , cationic polymerization , chemistry , bivalent (engine) , ion , ionic bonding , strong electrolyte , dissociation (chemistry) , inorganic chemistry , dissociation constant , hydrogen , organic chemistry , biochemistry , receptor , electrode , metal
The use of a bivalent counter anion for cationic isotachophoresis was studied both theoretically and experimentally. A mathematical model was proposed and solved to give the effective mobility of the hydrogen ion constituent, u H.H , in the respective electrolyte systems. The theoretical values agreed well with the experimental data in a series of electrolyte systems. The dependence of u H.H on such parameters as pH of the leading electrolyte, ionic mobilities of leading and counter ions, and dissociation constants was calculated and discussed. A bivalent counter anion will prove useful for the separation of low mobility cations and weak bases, as shown for the separation of substituted anilines in a succinate electrolyte system.