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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
2
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pubmed:dateCreated |
1997-6-20
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pubmed:abstractText |
The effect of organic modifiers (organic solvents and urea) on the electrophoretic buffer was investigated in an attempt to enhance resolution in the finger-printing of two humic substances (HS): an aquatic fulvic acid (FA) and a soil humic acid (HA). Two detection modes, photodiode array and laser-induced fluorescence, were applied. The addition of organic solvents (acetonitrile, acetone, 2-propanol and tetrahydrofuran) in 10 mM Na2B4O7 (pH 9.0) resulted in a clear difference in electrophoretic behavior of the studied HS compared to the absence of organic solvents. There were also marked differences in the electrophoretic profiles using a 2-propanol-borate buffer with urea. The study of the interaction between metals and HS showed that there was a change in the migration pattern in the presence of A1(III), indicating the specific binding sites of aluminum.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/1-Propanol,
http://linkedlifedata.com/resource/pubmed/chemical/Acetone,
http://linkedlifedata.com/resource/pubmed/chemical/Acetonitriles,
http://linkedlifedata.com/resource/pubmed/chemical/Benzopyrans,
http://linkedlifedata.com/resource/pubmed/chemical/Borates,
http://linkedlifedata.com/resource/pubmed/chemical/Furans,
http://linkedlifedata.com/resource/pubmed/chemical/Humic Substances,
http://linkedlifedata.com/resource/pubmed/chemical/Metals,
http://linkedlifedata.com/resource/pubmed/chemical/Solvents,
http://linkedlifedata.com/resource/pubmed/chemical/Urea,
http://linkedlifedata.com/resource/pubmed/chemical/acetonitrile,
http://linkedlifedata.com/resource/pubmed/chemical/borax,
http://linkedlifedata.com/resource/pubmed/chemical/fulvic acid,
http://linkedlifedata.com/resource/pubmed/chemical/tetrahydrofuran
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pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0173-0835
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:volume |
18
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
292-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9080140-1-Propanol,
pubmed-meshheading:9080140-Acetone,
pubmed-meshheading:9080140-Acetonitriles,
pubmed-meshheading:9080140-Benzopyrans,
pubmed-meshheading:9080140-Borates,
pubmed-meshheading:9080140-Electrophoresis, Capillary,
pubmed-meshheading:9080140-Fluorescence,
pubmed-meshheading:9080140-Furans,
pubmed-meshheading:9080140-Humic Substances,
pubmed-meshheading:9080140-Lasers,
pubmed-meshheading:9080140-Metals,
pubmed-meshheading:9080140-Solvents,
pubmed-meshheading:9080140-Urea
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pubmed:year |
1997
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pubmed:articleTitle |
Characterization of humic substances using capillary electrophoresis with photodiode array and laser-induced fluorescence detection.
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pubmed:affiliation |
Analysis and Methods Division, Environmental Technology Centre, Environment Canada, Ottawa.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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