Determination of estrogens and their catechol metabolites by ultra- high-performance liquid chromatography?time-of-flight high- resolution mass spectrometry

Abstract

An ultra-high-performance liquid chromatography separation was coupled to a dual ESI source with time-of-flight high-resolution mass spectrometry (UHPLC-ESI-TOF/MS) for the determination of steroidal hormones. Hormones studied include: estrone (E1), 17β-e