Direct Absorption Method and Liquid Scintillation Counting for Radiocarbon Measurements in Organic Carbon from Sediments
Bibliographic Data
| ID | 9245638 |
|---|---|
| Authors | Ionut Făurescu (0000-0001-9811-5751), Carmen Varlam (0000-0003-3325-822X), Ioan Stefanescu, Stela Cuna, Irina Vagner (0000-0001-7164-4215), Denisa Făurescu (0000-0002-5585-4690), Diana Bogdan |
| Year | 2010 |
| Volume | 52 |
| Issue | 2 |
| Pages | 794-799 |
| Publication date | 2010-01-01 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Radiocarbon (JOURNAL) |
| Journal identifiers | ISSN: 0033-8222 • E-ISSN: 1945-5755 |
| Publisher | Cambridge University Press (CUP) (PUBLISHER) |
| DOI | 10.1017/s003382220004580x |
| OpenAlex | W1895765583 |
| Language | EN |
| References cited | 2 |
In this paper, we investigate a procedure for radiocarbon determination in forest soil and slurry from lake sediments. The total carbon in these samples can be both inorganic and organic. Inorganic carbon can be analyzed in a straightforward manner using the direct absorption method by sample acidification and CO 2 capture. For organic carbon, we investigate a hybrid method using the wet-oxidation of organic carbon followed by direct absorption. To evaluate the wet-oxidation processes with potassium dichromate (K 2 Cr 2 O 7 ) and potassium permanganate (KMnO 4 ), we performed several experiments using different quantities of soil and sediments in order to establish the quantity of CO 2 for each type of sample. The 2 methods offer comparable results for 14 C-specific activity (about 0.234 ± 0.024 Bq/g C), values that are expected for these kinds of samples. We also investigated the possibility of isotopic fractionation occurring during CO 2 production from raw material by measuring δ 13 C levels from samples and obtained CO 2
Carbon fibers · Carbon-14 · Chromatography · Fractionation · Liquid scintillation counting · Mineralogy · Organic matter · Potassium dichromate · Potassium permanganate · Radiocarbon dating · Radiochemistry · Slurry · Soil test · Soil water · Total organic carbon · Wet oxidation · Atmospheric and Environmental Gas Dynamics · Chemistry · Environmental Science · Geology and Paleoclimatology Research · Isotope Analysis in Ecology · Materials Science · Environmental Chemistry · Environmental Engineering · Geology · Inorganic Chemistry · Soil Science
| Highly cited | No |
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