Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Z. Suprynowicz"'
Publikováno v:
Journal of Chromatography B: Biomedical Sciences and Applications. 685:129-134
A supported liquid membrane technique was used for the extraction and enrichment of propofol in a spiked sample of urine. An acidic solution of propofol and thymol as an internal standard was passed over the membrane and after enrichment the acceptor
Publikováno v:
Journal of High Resolution Chromatography. 19:237-240
Publikováno v:
Journal of Liquid Chromatography. 15:1957-1970
On the basis of sililca gel with strictly defined porosity the packings with different structure and coverage density of chemically bonded C18 phase (CBP) for solid phase extraction (SPE) have been prepared. Home-made packings were compared with five
Publikováno v:
Journal of Chromatography A. 552:463-473
The theoretical basis of the chromatographic titration method was investigated and the correctness of the determination of the strong silanol fraction was confirmed. Application of liquid-phase titration to the comparison of reversed-phase high-perfo
Publikováno v:
Journal of High Resolution Chromatography. 18:781-783
Publikováno v:
Journal of Chromatography A. 286:253-260
The optimization of the separation of veratric acid and its demethylation products, isovanillic and vanillic acids, by ion-suppression and ion-pair high-performance liquid chromatography is described. The influence of the eluent pH, composition of th
Publikováno v:
Journal of Chromatography A. 175:37-49
Three liquid crystalline cyanoazoxybenzene alkyl carbonates, with hexyl, nonyl or decyl as the alkyl radical, were investigated as stationary phases. They were deposited in various amounts on Polsorb B NAW and on Polsorb B AW and placed in 5 m X 0.8
Autor:
Z. Suprynowicz, Jan Åke Jönsson
Publikováno v:
Chromatographia. 14:455-458
Different types of diatomaceous supports, (pink and white) were deactivated in different ways: HCl gas treatment at high temperature, silanization and polymer coating with Carbowax 20 M. The adsorption effects of those supports when not coated with s
Publikováno v:
Journal of Chromatography A. 333:11-20
The chromatographic behaviour of isomeric dimethylnaphthalenes on a capillary column with a liquid crystalline stationary phase was studied. The liquid crystal used was 4-ethyl-4′-( p -methylbenzoyloxy)azobenzene, the mesophase of which is stable a
Publikováno v:
Journal of Chromatography A. 110:381-384