Elution of Ions from Melting Snow. Chromatographic Versus Metamorphic Mechanisms
Columns of natural and laboratory-aged snow grains and frozen water droplets were washed with deionized distilled water and with synthetic precipitation solutions to investigate both snowpack chemical fractionation and preferential ion elution. Concentrations of Cl-, NO-3 and So2-4 in sequential fra...
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ftdtic:ADA270430 2023-05-15T16:37:21+02:00 Elution of Ions from Melting Snow. Chromatographic Versus Metamorphic Mechanisms Cragin, James H. Hewitt, Alan D. Colbeck, Samuel C. COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH 1993-07 text/html http://www.dtic.mil/docs/citations/ADA270430 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA270430 en eng http://www.dtic.mil/docs/citations/ADA270430 Approved for public release; distribution is unlimited. Document partially illegible. DTIC AND NTIS Physical Chemistry Snow Ice and Permafrost Crystallography *SNOW *CRYSTAL GROWTH *ELUTION IONS CRYSTALS MELTING CHROMATOGRAPHY FRACTIONATION DISTILLED WATER ANIONS LABORATORIES ICE PRECIPITATION SNOW CRYSTAL GROWTH MELTWATER PE61102A WU002 Text 1993 ftdtic 2016-02-22T02:23:16Z Columns of natural and laboratory-aged snow grains and frozen water droplets were washed with deionized distilled water and with synthetic precipitation solutions to investigate both snowpack chemical fractionation and preferential ion elution. Concentrations of Cl-, NO-3 and So2-4 in sequential fractions of the column's eluate showed no chromatographic effects, indicating that ice crystals do not possess selective affinity for inorganic anions. Consequently, preferential chemical elution previously observed in melting snow is not caused by snow acting as a chromatographic column. Additional column experiments involving elution from frozen solution drops and from aged snow showed that both fractionation and preferential elution were strongly influenced by ion exclusion during the snow crystal growth. Text Ice permafrost Defense Technical Information Center: DTIC Technical Reports database |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
language |
English |
topic |
Physical Chemistry Snow Ice and Permafrost Crystallography *SNOW *CRYSTAL GROWTH *ELUTION IONS CRYSTALS MELTING CHROMATOGRAPHY FRACTIONATION DISTILLED WATER ANIONS LABORATORIES ICE PRECIPITATION SNOW CRYSTAL GROWTH MELTWATER PE61102A WU002 |
spellingShingle |
Physical Chemistry Snow Ice and Permafrost Crystallography *SNOW *CRYSTAL GROWTH *ELUTION IONS CRYSTALS MELTING CHROMATOGRAPHY FRACTIONATION DISTILLED WATER ANIONS LABORATORIES ICE PRECIPITATION SNOW CRYSTAL GROWTH MELTWATER PE61102A WU002 Cragin, James H. Hewitt, Alan D. Colbeck, Samuel C. Elution of Ions from Melting Snow. Chromatographic Versus Metamorphic Mechanisms |
topic_facet |
Physical Chemistry Snow Ice and Permafrost Crystallography *SNOW *CRYSTAL GROWTH *ELUTION IONS CRYSTALS MELTING CHROMATOGRAPHY FRACTIONATION DISTILLED WATER ANIONS LABORATORIES ICE PRECIPITATION SNOW CRYSTAL GROWTH MELTWATER PE61102A WU002 |
description |
Columns of natural and laboratory-aged snow grains and frozen water droplets were washed with deionized distilled water and with synthetic precipitation solutions to investigate both snowpack chemical fractionation and preferential ion elution. Concentrations of Cl-, NO-3 and So2-4 in sequential fractions of the column's eluate showed no chromatographic effects, indicating that ice crystals do not possess selective affinity for inorganic anions. Consequently, preferential chemical elution previously observed in melting snow is not caused by snow acting as a chromatographic column. Additional column experiments involving elution from frozen solution drops and from aged snow showed that both fractionation and preferential elution were strongly influenced by ion exclusion during the snow crystal growth. |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH |
format |
Text |
author |
Cragin, James H. Hewitt, Alan D. Colbeck, Samuel C. |
author_facet |
Cragin, James H. Hewitt, Alan D. Colbeck, Samuel C. |
author_sort |
Cragin, James H. |
title |
Elution of Ions from Melting Snow. Chromatographic Versus Metamorphic Mechanisms |
title_short |
Elution of Ions from Melting Snow. Chromatographic Versus Metamorphic Mechanisms |
title_full |
Elution of Ions from Melting Snow. Chromatographic Versus Metamorphic Mechanisms |
title_fullStr |
Elution of Ions from Melting Snow. Chromatographic Versus Metamorphic Mechanisms |
title_full_unstemmed |
Elution of Ions from Melting Snow. Chromatographic Versus Metamorphic Mechanisms |
title_sort |
elution of ions from melting snow. chromatographic versus metamorphic mechanisms |
publishDate |
1993 |
url |
http://www.dtic.mil/docs/citations/ADA270430 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA270430 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA270430 |
op_rights |
Approved for public release; distribution is unlimited. Document partially illegible. |
_version_ |
1766027642002210816 |