Standardization for oxygen isotope ratio measurement - still an unsolved problem
Numerous organic and inorganic laboratory standards were gathered from nine European and North American laboratories and were analyzed for their δ18O values with a new on-line high temperature pyrolysis system that was calibrated using Vienna standard mean ocean water (VSMOW) and standard light Anta...
| Main Authors: | , , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley
1999
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| Subjects: | |
| Online Access: | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=8131 https://doi.org/10.1002/(SICI)1097-0231(19990715)13:13<1248::AID-RCM560>3.0.CO;2-H |
| Summary: | Numerous organic and inorganic laboratory standards were gathered from nine European and North American laboratories and were analyzed for their δ18O values with a new on-line high temperature pyrolysis system that was calibrated using Vienna standard mean ocean water (VSMOW) and standard light Antartic precipitation (SLAP) internationally distributed reference water samples. Especially for organic materials, discrepancies between reported and measured values were high, ranging up to 2‰. The reasons for these discrepancies are discussed and the need for an exact and reliable calibration of existing reference materials, as well as for the establishment of additional organic and inorganic reference materials is stressed. |
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