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001-es BibID:	BIBFORM087596
Első szerző:	Gáspár Attila (vegyész, kémikus)
Cím:	Separation and kinetic study of chromium(III) chloro complexes by capillary electrophoresis / A. Gáspár, P. Buglyó
Dátum:	2000
ISSN:	0009-5893
Megjegyzések:	Three Cr(III) species (dichlorotetraaquachromium (III), [CrC12(H20)4]+; monochloropentaaquachromium(IIl), [CrCI(H20)5]2+; and hexaaquachromium(III), [Cr(H20)6] 3+) have been separated and determined by capillary electrophoresis. The first two complexes could be detected in direct mode in phosphate buffer, but because the absorption of complex 3+ [Cr(H20)6] is poor In the UV range, redirect UV detection had to be used. For indirect detection 5 mM imidazole was added to the buffer solution. The formation and decomposition of the different Cr(lII) complexes were monitored in time after the preparation of solutions of CrC13.6H20. The slowest process was the decomposition of [CrCI(H20)5]2+; 300 h after preparation of a solution of CrC13.6H20 of pH 1 the solution contained only [Cr(H20)6] 3+. The effects of pH and the content of some matrix ions on the rates of conversion of the complexes were studied. The kinetic characteristics of this complex system could be investigated adequately by means of capillary electrophoresis.
Tárgyszavak:	Természettudományok Kémiai tudományok konferenciacikk folyóiratcikk Capillary electrophoresis Chromium(III) chloro complexes Kinetics
Megjelenés:	Chromatographia. - 51 : Suppl. (2000), p. S143-S147. -
További szerzők:	Buglyó Péter (1965-) (vegyész)
Pályázati támogatás:	D29100 OTKA
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
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