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2. Advances in Sample Preparation at the National Ocean Sciences Accelerator Mass Spectrometry Facility (NOSAMS): Investigation of Carbonate Secondary Standards

Author

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, 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, and Xu, Li

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.

Published
2018

3. Advances in Sample Preparation at the National Ocean Sciences Accelerator Mass Spectrometry Facility (NOSAMS): Investigation of Carbonate Secondary Standards

Author

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, 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, and Xu, Li

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.

Published
2017

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