“Proton transfer reaction mass spectrometry technique for monitoring of volatile sulfur compounds in a fuel cell quality clean-up system.” Authors: Davide Papurello, Lorenzo Tognana, Andrea Lanzini, Federico Smeacetto, Massimo Santarelli, Ilaria Belcari, Silvia Silvestri, Franco Biasioli. Fuel Processing Technology, Volume 130, February 2015, pagg. 136–146. See more browsing Research Gate