Source:http://linkedlifedata.com/resource/pubmed/id/11487100
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
13
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pubmed:dateCreated |
2001-8-6
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pubmed:abstractText |
A simple analytical system has been developed and tested for estimating dissolved organic carbon (DOC) concentrations in nanoliter samples of sediment porewaters. The system consists of a loop injector that introduces 200 nL of sample directly into the capillary tubing connected to a scanning UV-VIS detector equipped with a 35-nanoliter capillary flowcell. Analysis of DOC by spectroscopic and high-temperature catalytic oxidation (HTCO) methods on the same samples showed a strong linear correlation between UV absorbance at 254 nm and HTCO-DOC concentration, allowing the DOC quantification. The simplicity and the robustness of the UV system allow DOC measurements in the field at a rate of 30 samples/h. We have used the UV system successfully for determining high-resolution distributions of porewater DOC concentrations in sediments at millimeter scales.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0043-1354
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
35
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
3057-62
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:11487100-Carbon,
pubmed-meshheading:11487100-Organic Chemicals,
pubmed-meshheading:11487100-Reproducibility of Results,
pubmed-meshheading:11487100-Sample Size,
pubmed-meshheading:11487100-Sensitivity and Specificity,
pubmed-meshheading:11487100-Solutions,
pubmed-meshheading:11487100-Spectrophotometry, Ultraviolet,
pubmed-meshheading:11487100-Water
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pubmed:year |
2001
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pubmed:articleTitle |
Estimation of dissolved organic carbon (DOC) concentrations in nanoliter samples using UV spectroscopy.
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pubmed:affiliation |
Institut des Sciences de la Mer de Rimouski, Université du Québec à Rimouski, Canada.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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