Determination of Nonvolatile Organic Carbon in Aquifer Solids After Carbonate Removal by Sulfurous Acid
dc.contributor.author | Heron, G. | en_US |
dc.contributor.author | Barcelona, Michael J. | en_US |
dc.contributor.author | Andersen, M. L. | en_US |
dc.contributor.author | Christensen, T. H. | en_US |
dc.date.accessioned | 2010-04-01T15:29:33Z | |
dc.date.available | 2010-04-01T15:29:33Z | |
dc.date.issued | 1997-01 | en_US |
dc.identifier.citation | Heron, G.; Barcelona, M. J.; Andersen, M. L.; Christensen, T. H. (1997). "Determination of Nonvolatile Organic Carbon in Aquifer Solids After Carbonate Removal by Sulfurous Acid." Ground Water 35(1): 6-11. <http://hdl.handle.net/2027.42/65974> | en_US |
dc.identifier.issn | 0017-467X | en_US |
dc.identifier.issn | 1745-6584 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/65974 | |
dc.description.abstract | The precise determination of total organic carbon (TOC) in aquifer materials is important in the estimation of retardation coefficients for organic compound transport. Commonly used methods for TOC determination after carbonate removal by acidification include: weight loss on ignition of solids at 550° C, acid-dichromate oxidation, and combustion at 800–950° C. Since carbonate carbon frequently is more abundant than organic carbon all TOC methods depend on efficient and complete carbonate removal prior to the TOC quantification step. A method for the determination of TOC in aquifer solids involving carbonate removal by 0.73 M sulfurous acid and subsequent combustion at 800° C was tested on solids from three aquifers and on mineral standards. The carbon quantification by combustion and infrared detection of CO 2 was accurate at solid organic carbon contents between 30 and 10,000 ΜgC/g. The acid treatment added small amounts of carbon to the sample, and siderite removal was incomplete. For samples without siderite or dolomite, the accuracy of TOC determinations was enhanced by grinding the solids. Measurement of very low TOC contents (50–100 /ΜgC/g) requires supplementary testing of grinding and acid treatment effects. | en_US |
dc.format.extent | 503473 bytes | |
dc.format.extent | 3110 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Blackwell Publishing Ltd | en_US |
dc.rights | 1997 National Ground Water Association | en_US |
dc.title | Determination of Nonvolatile Organic Carbon in Aquifer Solids After Carbonate Removal by Sulfurous Acid | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Natural Resources and Environment | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Civil & Environmental Engineering, The University of Michigan, 1221 IST BLDG, Ann Arbor, Michigan 48109–2099, USA. | en_US |
dc.contributor.affiliationother | Institute of Environmental Science and Engineering, Ground-water Research Centre, Technical University of Denmark, Building 115, DK-2800 Lyngby, Denmark. | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/65974/1/j.1745-6584.1997.tb00053.x.pdf | |
dc.identifier.doi | 10.1111/j.1745-6584.1997.tb00053.x | en_US |
dc.identifier.source | Ground Water | en_US |
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dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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