Advertisement

Environmental Chemistry Letters

, Volume 4, Issue 1, pp 29–35 | Cite as

Carbon isotope effects during precipitation of barium carbonate: implications for environmental studies

  • Anna Szynkiewicz
  • Mariusz Orion Jędrysek
  • Marta Kurasiewicz
Original Paper

Abstract

Here we demonstrate that precipitation of dissolved inorganic carbon (DIC) to at pH 10.26, 11.38 and 12.11 does not cause measurable carbon isotope fractionation. However, NaOH solution prepared under standard laboratory procedure and used to increase pH value for precipitation of BaCO3 can be contaminated by atmospheric CO2. In our experiment, δ13C value in the contaminant DIC was −24.30‰, which resulted in decrease in the δ13C(DIC) value by 0.03, 0.07 and 0.22 at pH 10.26, 11.38 and 12.11, respectively.

Keywords

Carbon isotopes Dissolved inorganic carbon (DIC) Precipitation of barium carbonate 

Notes

Acknowledgements

Great thanks are due to St. Halas for critical reading of the manuscript and G. Mayer for correction of English. This study was supported by grants 2439/W/ING/02 and KBN 5T12B02123. The first author is a holder of foreign scholarship of the Foundation for Polish Science (edition 2005).

References

  1. Atekwana EA, Krishnamurthy RV (1998) Seasonal variations of dissolved inorganic carbon and δ13C of surface waters: Application of a modified gas evolution technique. J Hydrol 205:265–278CrossRefGoogle Scholar
  2. Atekwana EA, Krishnamurthy RV (2004) Extraction of dissolved inorganic carbon (DIC) in natural waters for isotopic analysis. In: de Groot PA (ed) Handbook of stable isotope analytical techniques. Elsevier, Amsterdam, pp 203–236Google Scholar
  3. Bishop PK (1990) Precipitation of dissolved carbonate species from natural waters for δ13C analysis: A critical appraisal. Chem Geol 80:251–259Google Scholar
  4. Clark I, Fritz P (1997) Environmental isotopes in hydrogeology. Lewis Publishers, New YorkGoogle Scholar
  5. Fetter CW (1994) Applied hydrogeology. Macmillan, New YorkGoogle Scholar
  6. Graber ER, Aharon P (1991) An improved microextraction technique for measuring dissolved inorganic carbon (DIC), δ13C(DIC) and δ18O(H2O) from milliliter-size water samples. Chem Geol 94:137–144CrossRefGoogle Scholar
  7. Hałas S, Szaran J, Niezgoda H (1997) Experimental determination of carbon isotope equilibrium fractionation between dissolved carbonate and carbon dioxide. Geochim Cosmochim Acta 13:2691–2695Google Scholar
  8. Hassan AA (1982) Methodologies for extraction of dissolved inorganic carbon for stable carbon isotope studies: Evaluation and alternatives. US Geol Surv, Water Resour Nvest 82–6:51Google Scholar
  9. McCrea JM (1950) The isotopic chemistry of carbonates and paleotemperature scale. J Chem Phys 18:849–857CrossRefGoogle Scholar
  10. Taylor CB, Fox VJ (1996) An isotopic study of dissolved inorganic carbon in the catchment of the Waimakariri River and deep ground water of the North Canterbury Plains, New Zealand. J Hydrol 186:161–190CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  1. 1.Institute of Geological SciencesWrocław UniversityWrocławPoland

Personalised recommendations