| Autor: |
Elwyn, de la Vega, Gavin L, Foster, Miguel Angel, Martínez-Botí, Eleni, Anagnostou, M Paul, Field, M Hwan, Kim, Paul, Watson, Paul A, Wilson |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Rapid communications in mass spectrometry : RCMREFERENCES. 34(11) |
| ISSN: |
1097-0231 |
| Popis: |
To detect the small changes in past pHSamples were purified using the prepFAST-MC automated system with a ~25-μL column of Amberlite IRA743 resin. Boron isotope measurements were performed by MC-ICPMS. The effects of matrix load, speed of sample loading onto the column, and blank contamination were tested to evaluate the effects on the purification process. The optimised protocol was tested on various standards and samples of aragonite corals.The blank contribution for the approach is ~60 pg and is negligible given our sample size (0.2% sample size). Efficiency of matrix removal is demonstrated with the addition of up to 1.6 mg of dissolved low-B calcium carbonate to NIST SRM 951 with no impact on the accuracy of δOur study demonstrates the capacity of the prepFAST-MC method to generate accurate and reproducible δ |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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