The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
A low‐blank photochemical extraction system for concentration and isotopic analyses of marine dissolved organic carbon
Open accessAbstract
We report the development of a modified, low blank, ultraviolet oxidation and vacuum line system to convert marine dissolved organic carbon into carbon dioxide for concentration, Δ 14 C, and δ 13 C analyses. The system performs quantitatively and precisely with preservation of isotopic signatures (± 3‰) based on additions of pure International Atomic Energy Agency standards. Analytical blank reduction from < 1.5 µM to 0.2 µM enabled a decreased detection limit from a sample size of ~650 mL to 30 mL using a simple dilution technique. Combined with advances in analyses of ultra‐small (2 µgC) samples using accelerator mass spectrometry, the technique provides a means for measuring Δ 14 C values in samples that were previously not analyzable.
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Procedural blanks in environmental samples subjected to complex extraction/isolation procedures before conversion to CO2 and graphite are normally larger than those arising during combustion and graphitization.
“However, procedural blanks in environmental samples that are subjected to complex extraction/isolation procedures before conversion to CO 2 and graphite are normally larger than those arising during these latter processes (Hwang et al. 2005; Beaupré et al. 2007; Santos et al. 2010), and become even more critical when samples are small (<0.100 mg C).”
From Blank Assessment for Ultra-Small Radiocarbon Samples: Chemical Extraction and Separation Versus AMS (2010) · cites this paper as Beaupré et al. 2007
The Assessment section identifies organic contamination present before irradiation as the likely main source of blank carbon in this marine DOC extraction system. It does not compare extraction blanks with blanks from combustion and graphitization or establish that the former are normally larger across environmental samples. Page numbers are unavailable in our copy. (LLM, conf=0.79)
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Cites
14C Background Levels in An Accelerator Mass Spectrometry System
Vogel, J. S., Nelson, D. E., & Southon, J. R. (1987) · Radiocarbon · doi:10.1017/s0033822200043733 · Cited by 286 · cited 1×
“Splits of CO2 for Δ 14C analyses were first converted to graphite targets on iron catalyst (Vogel et al. 1987) and then analyzed by the UCI Keck Carbon Cycle AMS (KCCAMS) facility’s compact AMS system (NEC 0.5 MV 1.5 SDH-2 AMS).”
MethodInfluentialYahel, G., Sharp, J. H., Marie, D., Häse2, C., & Genin, A. (2003) · Limnology and Oceanography · doi:10.4319/lo.2003.48.1.0141 · Cited by 270
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Research works printed but not linked: 3
- Lide, D. R. 1995. CRC handbook of chemistry and physics, spe- cial student edition. Chemical Rubber Publishing Company.
- Pearson, A., A. P. McNichol, R. J. Schneider, K. F. Von Reden, and Y. Zheng. 1998. Microscale AMS C-14 measurement at NOSAMS. Radiocarbon 40:61-75.
- Sharp, J. H. 2002. Analytical methods for total DOM pools, p. 35-58. In D. A. Hansell and C. A. Carlson [eds.], Biogeo- chemistry of marine dissolved organic matter. Academic Press.
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Blank Assessment for Ultra-Small Radiocarbon Samples: Chemical Extraction and Separation Versus AMS
Santos, G. M., Southon, J. R., Drenzek, N. J., Ziolkowski, L. A., Druffel, E., Xu, X., Zhang, D., Trumbore, S., Eglinton, T. I., & Hughen, K. A. (2010) · Radiocarbon · doi:10.1017/s0033822200046415 · Cited by 103
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Metadata
- Authors
- Beaupré, S. R., Druffel, E. R. M., & Griffin, S.
- Affiliations
- University of California, Irvine (US)
- Venue
- Limnology and Oceanography: Methods
- Publisher
- Wiley
- Published
- 2007-06
- Volume
- 5
- Issue
- 6
- Pages
- 174-184
- ISSN
- 1541-5856 (ISSN-L)
- OpenAlex
- W1534230421
- Cited by
- 103
- References
- 2
- Citations by year
- 2026: 2 · 2025: 6 · 2024: 3 · 2023: 6 · 2022: 7 · 2021: 2 · 2020: 10 · 2019: 13 · 2018: 5 · 2017: 7 · 2016: 8 · 2015: 5 · 2014: 4 · 2013: 9 · 2012: 5
- FWCI
- 1.84
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Limnology and Oceanography Methods (publishedVersion)
- eScholarship (California Digital Library) (submittedVersion, cc-by)
- Funders
- National Science Foundation (0137207)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine Plankton and Biogeochemistry
- Physical Sciences › Environmental Science › Ecology › Isotope Analysis in Ecology
- Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Groundwater and Isotope Geochemistry
- Keywords
- marine dissolved organic carbon, UV oxidation, carbon-14, carbon-13 isotopes, CO2 concentration, accelerator mass spectrometry, detection limit
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