2002
Capillary electrophoretic study of interactions of metal ions with crown ethers, a sulfated beta-cyclodextrin, and zwitterionic buffers present as additives in the background electrolyte
MUZIKÁŘ, Martin; Josef HAVEL a M. MACKAZákladní údaje
Originální název
Capillary electrophoretic study of interactions of metal ions with crown ethers, a sulfated beta-cyclodextrin, and zwitterionic buffers present as additives in the background electrolyte
Autoři
MUZIKÁŘ, Martin; Josef HAVEL a M. MACKA
Vydání
ELECTROPHORESIS, WEINHEIM, WILEY-V C H VERLAG GMBH, 2002, 0173-0835
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10406 Analytical chemistry
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 4.325
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14330/02:00007641
Organizační jednotka
Fakulta informatiky
UT WoS
Klíčová slova anglicky
capillary electrophoretic study; sulfated beta-cyclodextrin
Změněno: 31. 5. 2003 15:08, RNDr. JUDr. Vladimír Šmíd, CSc.
Anotace
V originále
Stability constants of K, Na, Ca, and Ba with 18-crown-6, K, Na, L with sulfated P-cyclodextrin and K, Li, Ca, Mg, Sr, and Ba ions with ([2-hydroxy-1,1-bis(hydroxymethyl) ethyl]-amino)-1-propanesulfonic acid (TAPS) were determined by capillary electrophoresis and computed using a general least squares minimizing program CELET The results for 18-crown-6 agreed well with those evaluated by graphical methods or reported in the literature. Previously unknown stability constants of sulfated beta-cyclodextrins and TAPS determined for alkali and alkaline earth metals show that sulfated beta-cyclodextrin interacts with monovalent metals allowing to manipulate their effective mobility. It interacts stronger with divalent metal cations. TAPS, as zwitterionic buffer widely used in various analytical, biochemical and other applications, forms complexes with alkali and alkaline earth cations, and although the stability constants are rather low, the equilibria should be taken into account when TAPS is used and metal cations are present in solution at the same time.
Návaznosti
| GA203/02/1103, projekt VaV |
| ||
| MSM 143100011, záměr |
|