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Analysis of dissolved iron isotopes in seawater Seth G. John , Jess F. Adkins

Summary: Analysis of dissolved iron isotopes in seawater
Seth G. John , Jess F. Adkins
California Institute of Technology, Division of Geological and Planetary, Sciences, Pasadena, CA 91125, USA
a b s t r a c ta r t i c l e i n f o
Article history:
Received 22 July 2009
Received in revised form 22 December 2009
Accepted 5 January 2010
Available online xxxx
Iron isotopes
Mass spectrometry
Iron is an important nutrient in the ocean. Measuring the stable isotopes of dissolved Fe in seawater may
help to answer important biogeochemical questions such as what are the sources and sinks for Fe to the
oceans, and how is Fe biologically cycled. Because Fe concentrations in seawater are very low, typically less
than 1 nM, there are significant challenges both to separate and purify Fe from seawater without
introducing contamination, and to accurately analyze 56
Fe on the small quantities of Fe extracted. New


Source: Adkins, Jess F. - Division of Geological and Planetary Sciences, California Institute of Technology


Collections: Environmental Sciences and Ecology; Geosciences