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Quantification of the Oxidative Damage Biomarker 2,3-dinor-8-isoprostaglandin-F(2alpha) in Human Urine Using Liquid Chromatography-tandem Mass Spectrometry

Overview
Journal Anal Biochem
Publisher Elsevier
Specialty Biochemistry
Date 2009 Dec 23
PMID 20026293
Citations 18
Authors
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Abstract

F(2)-isoprostanes are useful biomarkers of oxidative status in humans. We developed an ultraperformance liquid chromatography-tandem mass spectrometric (UPLC-MS/MS) method to quantify 2,3-dinor-8-iso prostaglandin F(2alpha), a urinary metabolite of 8-iso-prostaglandin F(2alpha.) Urine was purified by solid-phase extraction and analyzed by UPLC-MS/MS with negative-ion electrospray ionization. The method was robust with a mean inaccuracy of 9%, interday and intraday imprecision of 7.5% or lower, and a lower limit of quantification of 0.5 microg/L, equivalent to 0.04 pmol injected onto the column. An analysis time of 6 min was shorter than previously published methods and amenable to large studies.

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