Fast 14C Sample Preparation of Organic Material
Bibliographic Data
| ID | 9244708 |
|---|---|
| Authors | Helmut Dörr, Bernd Kromer (0000-0003-1058-4436), Karl Otto Münnich |
| Year | 1989 |
| Volume | 31 |
| Issue | 03 |
| Pages | 264-268 |
| Publication date | 1989-01-01 |
| Peer Reviewed | Yes |
| Open Access | No |
| Type | ARTICLE |
| Venue | Radiocarbon (JOURNAL) |
| Journal identifiers | ISSN: 0033-8222 • E-ISSN: 1945-5755 |
| Publisher | Cambridge University Press (CUP) (PUBLISHER) |
| DOI | 10.1017/s0033822200011784 |
| OpenAlex | W2516960570 |
| Language | EN |
| Citations received | 2 |
A fast 14 C sample preparation technique for organic material in conventional 14 C counting is described. The basic difference from conventional preparation is oxidation of the organic substances in a closed system under an oxygen pressure of ca 10 bars. After the explosion-like combustion, the reaction products SO 2 and NO 2 are oxidized immediately to SO 4 2- and NO 3 − and precipitated on the wall of the reaction vessel. The residual gas mixture is passed first through a cold trap at −78° to remove water vapor and then through an activated charcoal column at 0° for purification. CO 2 is removed from the remaining O 2 −CO 2 gas mixture in a LN 2 trap at a pressure of ≃ 100mbar. With this method sample preparation time is reduced from ca 10 hr to ca 1 hr. The efficiency and reproducibility of the procedure is shown with 14 C and 13 C measurements of a sugar-carbon standard. The results obtained by the new technique agree well with conventionally prepared wood and bone samples
Activated charcoal · Adsorption · Carbon fibers · Charcoal · Chromatography · Combustion · Composite material · Mineralogy · Oxygen · Reproducibility · Sample Preparation · Chemistry · Isotope Analysis in Ecology · Materials Science · Radioactive contamination and transfer · Radioactivity and Radon Measurements · Organic Chemistry
| Unique citing works | 2 |
|---|---|
| Citations per year | 0,06 |
| Citation span | 1990 - 1996 (7) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 2 |