Isotachophoretic determination of stability constants of Ho and Y complexes with deithylenetriaminepentaacetic acid and 1,4,7,10-tetraazadodecane-N,N´,N´ˇ,N´ˇˇ-tetraacetic acid

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F03%3A00007467" target="_blank" >RIV/60461373:22340/03:00007467 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Isotachophoretic determination of stability constants of Ho and Y complexes with deithylenetriaminepentaacetic acid and 1,4,7,10-tetraazadodecane-N,N´,N´ˇ,N´ˇˇ-tetraacetic acid

Popis výsledku v původním jazyce

The method of capillary isozachophoresis with conductivity detection was applied for the determination of the physico-chemical characteristics (conditional stability constants log Bˇ) of holmium and yttrium complexes with DTPA (diethylenetriaminepentaacetic acid) and DOTA (1,4,7,10-tetraazadodecane-N,Nˇ,Nˇˇ,Nˇˇˇ-tetraacetic acid). The log Bˇ determination is based on the linear relation between the stability constants of lanthanide-DTPA (lanthanide-DOTA) complexes and the reduction of the zone of the complex owing to the bleeding phenomena (liberating free metal ion). The stability constants calculated using this relationship are comparable with the literary data obtained by other methods for both holmium (log BˇHo-DTPA=21,9, log BˇHo-DOTA=24,5) and yttrium complexes (log BˇY-DTPA=21,2 log BˇY-DOTA=24,4). Capillary isotachophoresis was applied for the determination of the optimum composition of the reaction mixture (metal:ligand ratio) as well.

Název v anglickém jazyce

Isotachophoretic determination of stability constants of Ho and Y complexes with deithylenetriaminepentaacetic acid and 1,4,7,10-tetraazadodecane-N,N´,N´ˇ,N´ˇˇ-tetraacetic acid

Popis výsledku anglicky

The method of capillary isozachophoresis with conductivity detection was applied for the determination of the physico-chemical characteristics (conditional stability constants log Bˇ) of holmium and yttrium complexes with DTPA (diethylenetriaminepentaacetic acid) and DOTA (1,4,7,10-tetraazadodecane-N,Nˇ,Nˇˇ,Nˇˇˇ-tetraacetic acid). The log Bˇ determination is based on the linear relation between the stability constants of lanthanide-DTPA (lanthanide-DOTA) complexes and the reduction of the zone of the complex owing to the bleeding phenomena (liberating free metal ion). The stability constants calculated using this relationship are comparable with the literary data obtained by other methods for both holmium (log BˇHo-DTPA=21,9, log BˇHo-DOTA=24,5) and yttrium complexes (log BˇY-DTPA=21,2 log BˇY-DOTA=24,4). Capillary isotachophoresis was applied for the determination of the optimum composition of the reaction mixture (metal:ligand ratio) as well.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Chromatography A

ISSN

0021-9673

e-ISSN

—

Svazek periodika

990

Číslo periodika v rámci svazku

990

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

311-316

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—