We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
AN ALTERNATE METHOD OF DILUTING DISSOLVED ORGANIC CARBON SEAWATER SAMPLES FOR <sup>14</sup>C ANALYSIS.
- Authors
Griffin, Sheila; Beaupré, Steven R; Druffel, Ellen R. M.
- Abstract
We present a time-saving modification to the ultraviolet (UV) oxidation method for analyzing dissolved organic carbon (DOC) concentration, Δ14C, and δ13C measurements in seawater and standard materials. A low background (~0.2 ± 0.2 µM) was reported for pre-irradiated Milli-Q (MQ) water that was used to dilute samples for DOC 14C analysis (Beaupré et al. 2007). We use MQ water without pre-irradiation (background ~0.9 ± 0.2 µM) to dilute the sample. This method is suitable for small-volume, high-concentration samples (mass of sample DOC overwhelms mass of MQ water DOC). An acceptable precision of Δ14C measurements (5-9‰) is maintained. This revised method reduces the preparation time for diluted DOC Δ14C samples from 2 days to 1 day.
- Publication
Radiocarbon, 2010, Vol 52, Issue 3, p1224
- ISSN
0033-8222
- Publication type
Article
- DOI
10.1017/S0033822200046300