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Related Articles A new derivative for oxosteroid analysis by mass spectrometry.Biochem Biophys Res Commun. 2014 Apr 11;446(3):762-7
Authors: Rigdova K, Wang Y, Ward M, Griffiths WJ
Abstract
Here we report a new method for oxosteroid identification utilizing “tandem mass tag hydrazine” (TMTH) carbonyl-reactive derivatisation reagent. TMTH is a reagent with a chargeable tertiary amino group attached through a linker to a carbonyl-reactive hydrazine group. Thirty oxosteroids were analysed after derivatisation with TMTH by electrospray ionization mass spectrometry (ESI-MS) and were found to give high ion-currents compared to underivatised molecules. ESI-tandem mass spectrometry (MS/MS) analysis of the derivatives yielded characteristic fragmentation patterns with specific mass reporter ions derived from the TMT group. A shotgun ESI-MS method incorporating TMTH derivatisation was applied to a urine sample.
PMID: 24525129 [PubMed - indexed for MEDLINE]
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A new derivative for oxosteroid analysis by mass spectrometry.
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