Is anyone out there using a laser spectroscopy CO2 analyzer for d13C and/or d18O in carbonates? Links to examples from aerodyne, lgr and picarro are below (acknowledging that picarro's only does d13C). If so, I would love to hear about your experience, especially for sample-limited paleoclimate applications. I'd also appreciate learning about how you are digesting the carbonate and introducing the co2.
Thanks for any thoughts,