Oxidation and Acidification of Anaerobic Sediment‐Water Systems by Autoclaving
The effect of autoclaving on the acid/base and redox properties of anaerobic sediment slurries was determined to facilitate the interpretation of autoclaved controls in studies of environmental reduction reactions. Autoclaving decreased electrode measurements of pH by 0.26 to 0.68 units and increase...
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Published in | Journal of environmental quality Vol. 22; no. 2; pp. 375 - 378 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Madison, WI
American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
01.04.1993
Crop Science Society of America American Society of Agronomy |
Subjects | |
Online Access | Get full text |
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Summary: | The effect of autoclaving on the acid/base and redox properties of anaerobic sediment slurries was determined to facilitate the interpretation of autoclaved controls in studies of environmental reduction reactions. Autoclaving decreased electrode measurements of pH by 0.26 to 0.68 units and increased electrode measurements of Eh by 34 to 94 mV. To corroborate this effect, we added redox indicators to the slurries and observed that autoclaving caused a shift in color consistent with the change in electrode measurements. Further investigation demonstrated that the observed effects are a common characteristic of autoclaving anaerobic sediment and are not limited to very restricted sediment types and are not artifacts of the way the experiments were performed. |
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Bibliography: | Mention of trade names or commercial product does not constitute endorsement or recommendation by the USEPA. |
ISSN: | 0047-2425 1537-2537 |
DOI: | 10.2134/jeq1993.00472425002200020019x |