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Analysis of Carnitine and Acylcarnitines in Urine by Capillary Electrophoresis

Analysis of Carnitine and Acylcarnitines in Urine by Capillary Electrophoresis

L Vernez, W Thormann, S Krähenbühl

J Chromatogr A. 2000 Oct 20;895(1-2):309-16.

PMID: 11105876

Abstract:

A capillary electrophoresis method is described for the simultaneous analysis of carnitine and short-chain acylcarnitines in aqueous standard solutions and urine samples. Samples were worked up using silica gel extraction and derivatization with 4'-bromophenacyl trifluoromethanesulfonate. Separation was performed in less than 8 min using a binary buffer system containing phosphate/phosphoric acid and sodium dodecyl sulfate. 3-(2,2,2-Trimethylhydrazinium)propionate (mildronate) was used as an internal standard. The method was developed with aqueous standard solutions and then applied successfully to spiked and unspiked human urine samples. The limit of detection for both carnitine and acetylcamitine is 3 microM.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP93128042	4-Bromophenacyl trifluoromethanesulfonate		93128-04-2	Price

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