Oana (M.Sc. Waterloo) is responsible for organic and inorganic samples for 37Cl and 81Br isotope analyses and the operation and maintenance of the IsoPrime-DI/CF/GC, Delta-V-DI/CF/GC and MAT 253-DI/CF/GC stable isotope mass spectrometers. She also provides back up for organic samples for 2H and 13C on the Thermo-Finnigan DeltaplusXP gas Chromatograph-combustion-isotope ratio mass spectrometer (GC-C-IRMS) and the IsoPrime Gas Chromatograpgh-combustion/MultiFlow-isotope ratio mass spectrometer (GC/MF/-IRMS).