TITLE

Short-end injection capillary electrophoresis for quantification of plasma chondroitin sulfate isomer disaccharides

AUTHOR(S)
Zinellu, Angelo; Sotgia, Salvatore; Usai, Maria; Zinellu, Elisabetta; Lepedda, Antonio; Deiana, Luca; Formato, Marilena; Carru, Ciriaco
PUB. DATE
August 2008
SOURCE
Analytical & Bioanalytical Chemistry;Aug2008, Vol. 391 Issue 8, p2865
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We describe a new ultra-rapid capillary electrophoresis method with UV detection for analysis of the disaccharides obtained after enzymatic depolymerization of plasma chondroitin sulfates. The free reducing groups of the released carbohydrate molecules are derivatized with 2-aminoacridone by reductive amination in the presence of cyanoborohydride. The fluorotagged products can be separated by short-end injection capillary electrophoresis in a capillary with an effective length of 10.2 cm. The migration times of Δdi-0S and Δdi-4S were 0.95 and 1.81 min, respectively. We compared the proposed method with UV detection to a reference CE-LIF assay by measuring plasma chondroitin sulfate in 94 subjects. The described assay for total plasma CS measurement may, owing to the high throughput and the fast analytical times, be a good tool for routine studies both in research and in clinical applications.
ACCESSION #
33337078

 

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