Research Support Instruments (United States)

Improved primary production and gross respiration measurements using the H 2 18 O technique with membrane inlet mass spectrometry and introduction of a small volume–uniform irradiance incubation chamber

Abstract An improvement in the H 2 18 O technique for phytoplankton gross primary productivity (GPP), net primary productivity (NPP), and gross respiration (GR) is described that reduces cost, labor, and time over the traditional isotope ratio mass spectrometer (IRMS) method. Mem...