Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Separation of dithiocarbamate metal complexes by micellar electrokinetic chromatography
Autore:
Hilder, EF; Macka, M; Haddad, PR;
Indirizzi:
Univ Tasmania, Sch Chem, Hobart, Tas 7001, Australia Univ Tasmania HobartTas Australia 7001 Chem, Hobart, Tas 7001, Australia
Titolo Testata:
ANALYST
fascicolo: 12, volume: 123, anno: 1998,
pagine: 2865 - 2870
SICI:
0003-2654(199812)123:12<2865:SODMCB>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERFORMANCE LIQUID-CHROMATOGRAPHY; CAPILLARY ZONE ELECTROPHORESIS; BIS(2-HYDROXYETHYL)DITHIOCARBAMATE COMPLEXES; SPECTROPHOTOMETRIC DETECTION; AUTOMATED-DETERMINATION; WALL ADSORPTION; NICKEL; COPPER; MERCURY; COBALT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Haddad, PR Univ Tasmania, Sch Chem, GPO Box 252-75, Hobart, Tas 7001, Australia Univ Tasmania GPO Box 252-75 Hobart Tas Australia 7001 ustralia
Citazione:
E.F. Hilder et al., "Separation of dithiocarbamate metal complexes by micellar electrokinetic chromatography", ANALYST, 123(12), 1998, pp. 2865-2870

Abstract

Separation of a number of transition metal complexes with bis(2-hydroxyethyl)dithiocarbamate (HEDTC) by micellar electrokinetic capillary chromatography (MEKC) with direct photometric detection was investigated. Pre-capillary complexation was shown to be superior to on-capillary complexation in terms of the number of metals ions which could be detected and their peak shapes, enabling analysis of Cd(II), Pb(II), Pt(II), Co(II), Ni(II), Bi(III), Cr(II), Cu(II) and Hg(II). The type and composition of the background electrolyte (BGE) were investigated with respect to separation selectivity and BGE stability. A BGE of 60 mM 3-(morpholino)propane sulfonic acid (MOPS), 30 mM tris(hydroxymethyl)aminomethane (Tris), 10 mM sodium dodecyl sulphate (SDS) and 100 mu M HEDTC, pH 7.2 was found to be optimal with nine metals baseline separated in less than seven minutes, and giving separation efficiencies of up to 367 000 theoretical plates, reproducibility of corrected peak areas below 3% relative standard deviation, concentration detection limits from 0.04 to 1.3 mu M and mass detection limits at sub femtomole levels (detection at 254 nm).

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/07/20 alle ore 15:43:09