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The Electrochemical Characteristics of Natural Redox Cells

M. Whitfield
Limnology and Oceanography
Vol. 17, No. 3 (May, 1972), pp. 383-393
Stable URL: http://www.jstor.org/stable/2834494
Page Count: 11
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The Electrochemical Characteristics of Natural Redox Cells
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Abstract

The discharge characteristics of a range of natural redox cells have been monitored. The equilibrium exchange current densities (i.) have been calculated and compared with the current drains imposed by modern electrometers. The results indicate that instrumental loading should be negligible, but the small values of i. observed may result in the slow attainment of a steady-state potential. This effect may not be so serious in reduced sediments where the Eh is closely correlated with sulfide activity. In other cases some of the irregularities in electrode behavior may be removed by discharging the cell in situ and measuring its recharge characteristics.

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