Szczegóły publikacji
Opis bibliograficzny
Triple-isotope calibration of in-house water standards supplemented by determination of $^{17}O$ content of USGS49-50 reference materials using cavity ring-down laser spectrometry / Anna PIERCHAŁA, Kazimierz RÓŻAŃSKI, Marek DULIŃSKI, Zbigniew GORCZYCA, Robert CZUB // Isotopes in Environmental and Health Studies ; ISSN 1025-6016. — 2021 — vol. 57 no. 3, s. 254–261. — Bibliogr. s. 261, Abstr. — Publikacja dostępna online od: 2021-01-29
Autorzy (5)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 135395 |
|---|---|
| Data dodania do BaDAP | 2021-09-07 |
| Tekst źródłowy | URL |
| DOI | 10.1080/10256016.2021.1875222 |
| Rok publikacji | 2021 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Isotopes in Environmental and Health Studies |
Abstract
The procedure of calibrating in-house water standards suitable for routine analyses of triple-isotope composition of water samples using Picarro L2140-i CRDS analyser is presented and discussed. Such standards are indispensable for achieving and maintaining high quality of isotope analyses of water in terms of their precision and accuracy. A set of seven different water standards consisting of three in-house standards and four secondary standards commercially available was calibrated against VSMOW2/SLAP2 primary reference materials. The calibrated standards cover a wide range of isotopic composition, with delta values ranging from close to zero to the values comparable with SLAP2. The apparent consistency of the calibrated values of delta H-2, delta O-18 and d-excess with corresponding certified values for commercially available USGS47-50 standards and the consistency of the calibrated values of delta O-17 and Delta O-17 with its literature values for USGS47-48 standards confirm the high quality of the performed calibration. Moreover, the calibration exercise allowed to obtain delta O-17 and Delta O-17 values for USGS49 and USGS50 standards, not reported so far.
