๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

On-line isotachophoretic sample preconcentration for enhancement of zone detectability in capillary zone electrophoresis

โœ Scribed by Frantisek Foret; Vladimir Sustacek; Petr Bocek

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
418 KB
Volume
2
Category
Article
ISSN
1040-7685

No coin nor oath required. For personal study only.

โœฆ Synopsis

Abstract

A simple isotachophoretic (ITP) preconcentration column for subsequent online capillary zone electrophoresis is described, and its use for enhancing detectability in capillary zone electrophoresis (CZE) is evaluated. Sample preconcentration using ITP is shown to enhance detectability in CZE by several orders of magnitude. Experimental verification of the detectability gain is demonstrated for cationic and anionic separations; an increase in detectability of more than 200โ€fold was achieved. The practical applicability of this method is demonstrated using a direct analysis of thiamine in human blood.

๐Ÿ“œ SIMILAR VOLUMES

Capillary zone electrophoresis of dilute
Capillary zone electrophoresis of dilute samples with isotachophoretic preconcentration
โœ Vladislav Dolnik; Kelly A. Cobb; Milos Novotny ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 444 KB

## Abstract A method for concentrating dilute samples prior to separation by capillary zone electrophoresis (CZE) is described. The principles of isotachophoresis are used to achieve higher local concentrations of the sample solution within a preconcentration capillary that is attached directly to

Operational modes for transient isotacho
Operational modes for transient isotachophoretic preconcentration-capillary zone electrophoresis and detectable concentration of rare earth ions
โœ Takeshi Hirokawa; Hikaru Okamoto; Natsuki Ikuta ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 142 KB

## Operational modes for transient isotachophoretic preconcentration-capillary zone electrophoresis and detectable concentration of rare earth ions Operational modes for transient isotachophoretic preconcentration capillary zone electrophoresis (tr-ITP-CZE) were studied by using 5 mM and 0.5 mM ra

On-line microwave-induced helium plasma
On-line microwave-induced helium plasma atomic emission detection for capillary zone electrophoresis
โœ Liu, Yan ;Lopez-Avila, Viorica ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 418 KB

## Abstract We report a feasibility study on using a microwaveโ€induced helium plasma atomic emission detector (MIPโ€AED) as an onโ€line detector in capillary zone electrophoresis (CZE). To couple CZE to MIPโ€AED, we used an ion exchange membrane capillary to connect the separation capillary to the int