An Isotope Dilution-Liquid Chromatography-Tandem Mass Spectrometry-Based Candidate Reference Measurement Procedure for the Quantification of 5-Alpha-Dihydrotestosterone in Human Serum and Plasma
January 2026
in “
Clinical Chemistry and Laboratory Medicine (CCLM)
”
TLDR The procedure accurately measures 5-alpha-dihydrotestosterone in blood, useful for standard tests.
The study presents a reference measurement procedure (RMP) using isotope dilution-liquid chromatography-tandem mass spectrometry for quantifying 5-alpha-dihydrotestosterone (DHT) in human serum and plasma. The RMP demonstrated high analytical performance and met the necessary requirements for measurement uncertainty. It effectively differentiated between the 5α-DHT and 5β-DHT isomers, making it suitable for routine assay standardization and clinical sample evaluation.