STP1232: Sulfur Isotope Fractionation in Sulfide Corrosion Products as an Indicator for Microbiologically Influenced Corrosion (MIC)

    Little, BJ
    Research chemist and oceanographer, Naval Resarch Laboratory, Stennis Space Center, MS

    Wagner, P
    Research chemist and oceanographer, Naval Resarch Laboratory, Stennis Space Center, MS

    Jones-Meehan, J
    Microbiologist, Naval Surface Warfare Center, Silver Spring, MD

    Pages: 8    Published: Jan 1994


    Abstract

    Sulfur isotope fractionation was demonstrated in corrosion products resulting from the activities of sulfate-reducing bacteria within biofilms on copper surfaces. 32S accumulated in corrosion products, while 34S was concentrated in the culture medium due to fractionation. The accumulation of the lighter isotope was related to surface derivatization or corrosion as measured by weight loss.

    Keywords:

    sulfur isotopes, sulfate-reducing bacteria (SRB), corrosion, mass spectrometry, copper alloys, seawater, environmental scanning electron microscopy (ESEM)


    Paper ID: STP12934S

    Committee/Subcommittee: G01.09

    DOI: 10.1520/STP12934S


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