X-ray absorption near edge structure (XANES) techniques can be used to differentiate Cu+1 and Cu+2 species within biofilms attached to surfaces. Copper ions could not be demonstrated with XANES within a marine biofilm of Oceanospirillum on a corroding copper surface. Furthermore, Cu+2 concentration cells do not appear to be a significant mechanism for microbiologically influenced corrosion in marine environments.

Subject
Ions, Ion speciation, Glass, Metal surfaces, X-ray spectroscopy, Biofilms, Polymers, Metals, Maritime, Copper, Galvanic current, Microbiologically influenced corrosion, Concentration cells
Keywords:
copper, microbiologically influenced corrosion, polymer, Xanes
© 1994 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1994
Association for Materials Protection and Performance (AMPP)
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