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An intensity ratio calibration method for the accurate determination of Mg/Ca and Sr/Ca of marine carbonates by ICP‐AES
Open accessAbstract
An inductively coupled plasma‐atomic emission spectroscopy (ICP‐AES) method for the accurate and precise simultaneous measurement of the Mg/Ca and Sr/Ca content of carbonates was established. While a precision of <0.3% (1 σ standard deviation (SD)) is easily obtainable for both Mg/Ca and Sr/Ca analysis, a Ca matrix effect complicates achieving similar levels of accuracy with conventional calibration procedures. An alternative ratio calibration procedure is proposed which overcomes the Ca matrix effects and ensures the accuracy of the Mg/Ca and Sr/Ca analysis of marine carbonates to <0.3%, almost an order of magnitude better than conventional calibration methods. The longer‐term precision is <0.1% if the batch run average values are corrected for longer‐term drift. The method is suitable for analysis of foraminiferal calcite and coral aragonite and can easily be adjusted for the analysis of other carbonates or microsamples.
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Cited by
A study of cleaning procedures used for foraminiferal Mg/Ca paleothermometry
Barker, S., Greaves, M., & Elderfield, H. (2003) · Geochemistry, Geophysics, Geosystems · doi:10.1029/2003gc000559 · Cited by 1,051
Self-citationLittlewood, J. L., Shaw, S., Peacock, C. L., Bots, P., Trivedi, D., & Burke, I. T. (2017) · Crystal Growth & Design · doi:10.1021/acs.cgd.6b01599 · Cited by 106
Coupled Mg/Ca and clumped isotope analyses of foraminifera provide consistent water temperatures
Breitenbach, S. F. M., Mleneck-Vautravers, M. J., Grauel, A.-L., Lo, L., Bernasconi, S. M., Müller, I. A., Rolfe, J., Gázquez, F., Greaves, M., & Hodell, D. A. (2018) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2018.03.010 · Cited by 51
Self-citationRoberts, L. R., Holmes, J. A., Leng, M. J., Sloane, H. J., & Horne, D. J. (2018) · Quaternary Science Reviews · doi:10.1016/j.quascirev.2018.03.030 · Cited by 28
Metadata
- Authors
- de Villiers, S., Greaves, M., & Elderfield, H.
- Venue
- Geochemistry, Geophysics, Geosystems
- Publisher
- American Geophysical Union (AGU)
- Published
- 2002-01
- Volume
- 3
- Issue
- 1
- ISSN
- 1525-2027 (ISSN-L)
- OpenAlex
- W1550889594
- Cited by
- 338
- References
- 0
- FWCI
- 11.65
- Type
- journal article
- Language
- en
- Open access
- bronze
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- de Villiers, S., Greaves, M., & Elderfield, H. (2002). An intensity ratio calibration method for the accurate determination of Mg/Ca and Sr/Ca of marine carbonates by ICP‐AES. Geochemistry, Geophysics, Geosystems. https://doi.org/10.1029/2001gc000169
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