About the Lab
Our laboratory facility operates within the University of Hawaii at Manoa's School of Ocean & Earth Science & Technology, under the supervision of Dr. Brian Popp, Departments of Geology and Geophysics and Oceanography. Our lab houses 3 ThermoFinnigan ion ratio-monitoring mass spectrometers, 2 Trace Gas chromatographs, a Carlo Erba elemental analyzer, and GasBench II. Below are descriptions of various equipment in our lab. To view details and prices of analyses, click on the highlighted links below.
ThermoFinnigan DeltaPlus XP
Our recently acquired DeltaPlus XP is equipped with dual inlet capabilities as well as being interfaced with a Trace GC and Finnigan GasBench II peripherals. Our primary usage for this mass spectrometer is analysis of the d15N and d18O of the isotopomers of N2O. Utilizing the GasBench II peripheral, we are able to analyze d13C-DIC (dissolved inorganic carbon) of waters, d13C and d18O of carbonates, d18O of waters, and both d15N and d18O of nitrate as N2O.
ThermoFinnigan Delta S
The Delta S is primarily used for the determination of d13C and d15N on a variety of solid samples. These analyses are performed using a Carlo Erba NC2500 Elemental Analyzer interfaced to the Delta S via a Finnigan ConFloII. This mass spectrometer also has dual inlet capabilities.
Finnigan MAT252
This instrument is equipped with a Trace GC/GCIII interface for determining d13C of specific carbon compounds. (We soon hope to have the capability to perform compound specific analyses on individual compounds of nitrogen.) It is also equipped with multiport and dual inlet systems, as well as in-house fabricated inlet systems for the introduction of headspace samples (i.e. CO2, N2O, CH4).
To see a list of publications in which our lab generated data for and/or our lab students and investigators were a part of, see our "Publications" page!