Effect of Perfluorinated Surfactant as Additive of Background Electrolyte for Capillary Electrophoresis of Inorganic Cations
Mori, M; Ikeda, T; Itabashi, H
| HERO ID | 1869689 |
|---|---|
| In Press | No |
| Year | 2012 |
| Title | Effect of Perfluorinated Surfactant as Additive of Background Electrolyte for Capillary Electrophoresis of Inorganic Cations |
| Authors | Mori, M; Ikeda, T; Itabashi, H |
| Journal | Acta Chromatographicae |
| Volume | 24 |
| Issue | 4 |
| Page Numbers | 529-542 |
| Abstract | This study reports the effect of a nonionic perfluorinated surfactant, N-polyoxyethylene-N-propyl perfluorooctane sulfonamide (PFOSA), as additive of background electrolyte on capillary electrophoresis (CE) of common inorganic cations. The association constants (K sub(ass)) for PFOSA estimated from the electrophoretic mobility of analyte cations were the order of Mg super(2+) > Ca super(2+) > Sr super(2+) >> K super(+) approximately NH super(+) sub(4) > Na super(+) approximately Li super(+). The K sub(ass) values were larger than those for zwitterionic and nonionic surfactants with hydrocarbon moiety. Use of PFOSA made another essential contribution to the determination of inorganic cations in a protein-containing sample. This was considered because high solubility of PFOSA for proteins functioned as suppressor for protein adsorption to the capillary wall. Four inorganic cations, Na super(+), K super(+), Mg super(2+), and Ca super(2+), in human saliva sample were successfully determined by sample injection without any pretreatments except for filtration and dilution. |
| Doi | 10.1556/AChrom.24.2012.4.2 |
| Wosid | WOS:000311308100002 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | nonionic perfluorinated surfactant; association constant; inorganic cations; capillary electrophoresis |