Diagnostics


Study findings from Fukuoka University, Faculty of Pharmaceutical Sciences provide new insights into liquid chromatography



Diagnostics Library
Library Home

This article was published in Life Science Weekly, which you can subscribe to online.

2007 NOV 20 -- Current study results from the report, 'Liquid chromatography method for detecting native fluorescent bioamines in urine using post-column derivatization and intramolecular FRET detection,' have been published. "Liquid chromatography (LC) with fluorescence detection is described for simultaneous determination of native fluorescent bioamines (indoleamines and catecholamines). This is based on intramolecular fluorescence resonance energy transfer (FRET) in an LC system following post-column derivatization of native fluorescent bioamines' amino groups with o-phthalaldehyde (OPA)," investigators in Fukuoka, Japan report.

"OPA fluorescence was achieved through an intramolecular FRET process when the molecules were excited at maximum excitation wavelength of the native fluorescent bioamines. Bioamines separated by reversed-phase LC on ODS column were derivatized with OPA and 2-mercaptoethanol," wrote M. Yoshitake and colleagues, Fukuoka University, Faculty of Pharmaceutical Sciences.

The researchers concluded: "This method provides sufficient selectivity and sensitivity for the determination of normetanephrine, dopamine, tyrosine, 5-hydroxytryptamine, tryptamine, and tryptophan in healthy human urine without prior sample purification."

Yoshitake and colleagues published their study in the Journal of Chromatography B (Liquid chromatography method for detecting native fluorescent bioamines in urine using post-column derivatization and intramolecular FRET detection. Journal of Chromatography B, 2007;858(1-2):307-12).

For additional information, contact M. Yoshitake, Faculty of Pharmaceutical Sciences, Fukuoka University, Nanakuma, Johnan, Fukuoka 814-0180, Japan.

The publisher of the Journal of Chromatography B can be contacted at: Elsevier Science BV, PO Box 211, 1000 AE Amsterdam, Netherlands.

Keywords: Japan, Fukuoka, Liquid Chromatography, Diagnosis, Diagnostics.

This article was prepared by Life Science Weekly editors from staff and other reports. Copyright 2007, Life Science Weekly via NewsRx.com.