| Autor: |
Sergey, Assonov, Manfred, Groening, Ales, Fajgelj, Jean-Francois, Hélie, Claude, Hillaire-Marcel |
| Rok vydání: |
2019 |
| Zdroj: |
Rapid communications in mass spectrometry : RCMREFERENCES. 34(20) |
| ISSN: |
1097-0231 |
| Popis: |
NBS19 carbonate, a primary reference material (RM) for the Vienna Pee Dee Belemnite (VPDB) scale realisation introduced in 1987, was exhausted in 2009, and no primary RM was available for several years. This study describes the preparation and characterisation of a new RM, IAEA-603 (Ca-carbonate, calcite of marble origin), which shall serve as a new primary RM (replacement for NBS19) or primary calibrator aimed at the highest realisation of the VPDB scale for δIAEA-603 preparation and characterisation (value transfer) against NBS19 were performed by addressing the major modern technical requirements for the production and characterisation of RMs (ISO Guide 35). IAEA-603 was produced in a large quantity, and the first batch was sealed into ampoules (0.5 g) to ensure RM integrity during storage; four other batches were sealed for long-term storage. The most accurate method of COThe assigned values of δThe new primary RM IAEA-603 replaces NBS19 in its use as the highest calibrator for the VPDB δ |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
Plný text