Fast and Direct Quantification of Adrenal Steroids by Tandem Mass Spectrometry in Serum and Dried Blood Spots

Overview

Journal J Chromatogr B Analyt Technol Biomed Life Sci

Publisher Elsevier

Specialties Biomedical Engineering
Chemistry

Date 2007 Dec 7

PMID 18053779

Citations 20

Authors

Nils Janzen

Stefanie Sander

Michael Terhardt

Michael Peter

Johannes Sander

Affiliations

Soon will be listed here.

Abstract

We present a fast and reproducible method for steroid analysis (corticosterone, deoxycorticosterone, progesterone, 17alpha-hydroxyprogesterone, 11-deoxycortisol, 21-deoxycortisol, androstenedione, testosterone, dihydrotestosterone and cortisol) in small volumes of serum and in dried blood spot samples by LC-MS/MS. No derivatisation was needed. LC separation was achieved by using an Atlantis C18 column and water-methanol-formic acid gradient as a mobile phase and a flow rate of 250 microL/min over a run time of 6 min. Steroids were measured in MRM mode with electrospray interface (positive ion mode). Validation showed excellent precision, sensitivity, recovery and linearity with coefficients of determination r2>0.992.

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