D 2000

Determination of glutathione by micellar electrokinetic chromatography and on-column reaction with 2,2-dipyridyldisulphide

GLATZ, Zdeněk and Hana MAŠLAŇOVÁ

Basic information

Original name

Determination of glutathione by micellar electrokinetic chromatography and on-column reaction with 2,2-dipyridyldisulphide

Authors

GLATZ, Zdeněk and Hana MAŠLAŇOVÁ

Edition

Saarbrucken, Germany, Book of Abstract "13th International symposium on high performance capillary electrophoresis and related techniques HPCE 2000". p. 155-156, 2000

Publisher

Universites des Saarlandes

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/00:00003265

Organization unit

Faculty of Science

Keywords in English

glutathione; on-column derivatization; MEKC
Změněno: 27/2/2001 15:56, prof. RNDr. Zdeněk Glatz, CSc.

Abstract

V originále

A new method for specific determination of glutathione using micellar electrokinetic chromatography and on-column reaction with 2,2 -dipyridyldisulphide is described. 2,2-dipyridyldisulphide and a sample of glutathione are injected consecutively into the capillary as two discrete plugs separated with a short plug of background electrolyte. Due to the differences in the mobilities of the 2,2-dipyridyldisulphide and glutathione, on-column mixing and reaction occur. Glutathione is in this reaction quantitatively transformed into a mixed disulphide concomitantly with formation of equimolar amount of the 2-thiopyridone which is further separated by micellar electrokinetic chromatography and determined spectrophotometrically at 343 nm. The concentration of glutathione is thus estimated indirectly from the result of 2-thiopyridone determination.

Links

GA525/00/0785, research and development project
Name: Acidifikační procesy v sulfidových odpadech
Investor: Czech Science Foundation, Acidification processes in sulfide wastes