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Can anybody tell me how to measure Redox potential in an
aerobic matrix, for e.g., soil etc.?

Answer Posted / michal

http://www.soil.ncsu.edu/wetlands/wetlandsoils/RedoxWriteup.pdf

Anaerobic protective atmosphere required, multiple
measerument preferred for additional reference. Follow the
link above and if You`re interested in marine environments
follow the one below

http://www.geochemie.uni-bremen.de/downloads/redox/chapter19.pdf

Good luck

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