Advances in Sample Preparation at the National Ocean Sciences Accelerator Mass Spectrometry Facility (NOSAMS): Investigation of Carbonate Secondary Standards
Advances in Sample Preparation at the National Ocean Sciences Accelerator Mass Spectrometry Facility (NOSAMS): Investigation of Carbonate Secondary Standards
Date
2017
Authors
Cruz, Anne J.
Childress, Laurel B.
Gagnon, Alan R.
McNichol, Ann P.
Burton, Joshua R.
Elder, Kathryn L.
Lardie Gaylord, Mary C.
Gospodinova, Kalina D.
Hlavenka, Joshua
Kurz, Mark D.
Longworth, Brett E.
Roberts, Mark L.
Trowbridge, Nan Y.
Walther, Tess
Xu, Li
Childress, Laurel B.
Gagnon, Alan R.
McNichol, Ann P.
Burton, Joshua R.
Elder, Kathryn L.
Lardie Gaylord, Mary C.
Gospodinova, Kalina D.
Hlavenka, Joshua
Kurz, Mark D.
Longworth, Brett E.
Roberts, Mark L.
Trowbridge, Nan Y.
Walther, Tess
Xu, Li
Linked Authors
Person
Person
Person
Person
Person
Alternative Title
Citable URI
As Published
Date Created
Location
DOI
Related Materials
Replaces
Replaced By
Keywords
Standard Methods
Carbonate Acidification
Ramped PyrOx
Picarro Isotope Analyzer
Sample Preparation
Carbonate Acidification
Ramped PyrOx
Picarro Isotope Analyzer
Sample Preparation
Abstract
The development of robust sample preparation techniques for ocean science research has been a hallmark of
NOSAMS since its inception. Improvements to our standard methods include reducing the minimum size of the
samples we can analyze, building modular graphite reactors of different sizes that we can swap in and out
depending on our sample stream, and modifying our carbonate acidification methods to improve handling of the
smaller samples we now receive. A relatively new instrument, the Ramped PyrOx, which allows the separation
of organic matter into thermal fractions, has attracted much interest as a research and development tool. We will
also discuss our progress on incorporating a Picarro isotope analyzer into our sample preparation options.