Rapid quantification and isotopic analysis of dissolved sulfur species.
Derek A SmithAlex L SessionsKatherine S DawsonNathan DalleskaVictoria J OrphanPublished in: Rapid communications in mass spectrometry : RCM (2018)
Derivatization of aqueous sulfur species with bromobimane is easily accomplished in the field, and protects analytes from oxidation during storage. UPLC separation with fluorescence detection provides low-μM detection limits. Using high-resolution TOF-MS, accurate detection of as little as 0.01% 34 S label incorporation into multiple species is feasible. This provides a useful new analytical window into microbial sulfur cycling. Copyright © 2017 John Wiley & Sons, Ltd.