B 2000

Determination of pyrroloquinoline quinone by capillary zone electrophoresis

GLATZ, Zdeněk, Martina MORAVCOVÁ and Oldřich JANICZEK

Basic information

Original name

Determination of pyrroloquinoline quinone by capillary zone electrophoresis

Authors

GLATZ, Zdeněk, Martina MORAVCOVÁ and Oldřich JANICZEK

Edition

Amsterdam, 7 pp. Journal of Chromatography B, 739/1, 101 - 107, 2000

Publisher

Elsevier

Other information

Language

English

Type of outcome

Odborná kniha

Field of Study

10600 1.6 Biological sciences

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/00:00003262

Organization unit

Faculty of Science

ISBN

ISSN 0378-4347

UT WoS

000085807600010

Keywords in English

capillary zone electrophoresis; PQQ; pyrroloquinoline quinone; quinoproteins
Změněno: 28/2/2001 09:50, prof. RNDr. Zdeněk Glatz, CSc.

Abstract

V originále

A new method for the determination of pyrroloquinoline quinone by capillary zone electrophoresis has been developed. Separation conditions have been optimised with the respect to different parameters including pH and ionic strength of the background electrolyte, separation voltage and temperature of the capillary. A buffer consisting of 50 mM b-alanine - HCl pH 3.0 was found to be the most suitable electrolyte for this separation. An applied voltage of 25 kV (negative polarity) and a temperature of 25 oC gave the best analysis of pyrroloquinoline quinone. The linear detection range for concentration versus peak area for the assay is from 5 to 500 mM (correlation coefficient 0.9998) with a detection limit of 0.1- 0.2 mM. The inter-day reproducibility of the peak area was 2.5 % and the inter-day reproducibility of the migration time was below 0.18 %.

Links

GA525/97/0340, research and development project
Name: Aktivita bakterie Thiobacilus ferrooxidans ve vztahu k ekotoxikologii sulfidických odpadů
Investor: Czech Science Foundation, Activity of Thiobacillus ferrooxidans in relation to ecotoxicology of sulfide wastes