hrp0084p1-147 | Miscelleaneous | ESPE2015

A New LC-MS/MS Assay for the Analysis of Sulfated Steroids in Human Serum: Quantification of Cholesterol Sulfate, Pregnenolone Sulfate, 17-Hydroxypregnenolone Sulfate and Androgen Sulfates

Sanchez-Guijo Alberto , Oji Vinzenz , Hartmann Michaela F , Traupe Heiko , Wudy Stefan A

Background: Steroids are found in human blood predominantly as sulfated steroids. Conjugation of steroids increases their solubility in blood, facilitating their physiological regulation and excretion. Chromatographic separation and quantification of an extensive number of sulfated steroids is challenging. For instance, androgen sulfates are structurally related and their signals are very similar in mass spectrometry.Objective and hypotheses: Some of the...