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Instrumentation

Our lab is based around making rapid and precise determinations of carbonate system parameters. These instruments are set up to run environmental samples of total alkalinity and DIC, the δ13C and δ1818 of DIC, and the δ13C and δ18O of CaCO3. We also have a membrane inlet mass spectrometer (MIMS) which we use to determine the activity of the enzyme Carbonic anhydrase (CA) in natural samples.

LGR Isotopic CO2 Analyzer

Coming soon! Our LGR CCIA-2 isotopic CO2 analyzer will be fitted with an AutoMate DIC/CaCO3 front end to analyze multiple samples for their CO2 content and the δ13C and δ18O of CO2.

Metrohm Autotitration System

Coming soon! A metrohm titration system capable of measuring small (3mL) volume natural water samples for their total alkalinity.

Membrane Inlet Mass Spectrometer (MIMS)

Pfeiffer Membrane inlet mass spectrometer (MIMS) with a custom-designed and built front end, for analyzing the enzyme activity of carbonic anhydrase, using the 18O-spike method.

WHOI Plasma Mass Spectrometry Facility

We occasionally use inductively coupled plasma mass spectrometers (ICP-MS) to make measurements of metals in seawater and in carbonate shells.  You can see the facility here