2002
The speciation of rhodium(III) in hydrochloric acid media by capillary zone electrophoresis
SANCHEZ, M. Juan; Manuela HIDALGO; Josef HAVEL a Victoria SALVADOZákladní údaje
Originální název
The speciation of rhodium(III) in hydrochloric acid media by capillary zone electrophoresis
Autoři
SANCHEZ, M. Juan; Manuela HIDALGO; Josef HAVEL a Victoria SALVADO
Vydání
Talanta, Elsevier Science, 2002, 0039-9140
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10406 Analytical chemistry
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.054
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/02:00005628
Organizační jednotka
Přírodovědecká fakulta
UT WoS
Klíčová slova anglicky
rhodium(III) speciation; hydrochloric acid media; capillary zone electrophoresis
Změněno: 11. 4. 2002 10:36, prof. RNDr. Josef Havel, DrSc.
Anotace
V originále
A fast and effective method to stady the aquation of rhodium(III) chlorocomlex in hydrochloric solutions using capillary zone electrophoresis id developed. At least five species, some of which seem to be oligomeric, are formed in solution during the aquation prodess at pH>1. The fast hydration of RhCl3-/6 makes this species impossible to detect. The first species detected in the optimised conditions is RhCl5(H2O)2- although RhCl4(H2O)2- is the main species during the first stage of the aquation process. When equilibrium is reached either RhCl3(H2O)3 or a cationic complex, RhCl2(H2O)4+, is formed as the main species. Matrix Assisted Laser Desorption Ionisation Time of Flight Mass Spectrometry is used as a novel technique to elucidate the structure of the rhodium aqua/chloro complexes formed in solution. Results obtained by CZE are confirmed by spectrophotometry.
Návaznosti
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