“We conduct both laboratory and field-based experiments with the aim of unravelling how climate change impacts the ecosystem-atmosphere exchange of biogenic VOCs...In these studies, it is vital to be able to track changes in the VOC blend and concentration in real-time with our PTR-ToF-MS instruments. The compact size and mobility have allowed us to bring our sensitive PTR-TOF 1000 ultra instruments to the Arctic tundra to measure ecosystem fluxes of VOCs.”