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A re-examination of matrix effects in the segmented-flow analysis of nutrients in sea and estuarine water ArchiMer
Coverly, Stephen; Kerouel, Roger; Aminot, Alain.
Modern instruments together with the use of standard reference materials have improved the accuracy and long-term reproducibility of the analysis of nutrients (ammonium, nitrate, nitrite, phosphate and silicate) in sea water using segmented-flow analysis, so that errors arising from matrix effects become more significant. Colorimetric detectors with bubble-through flowcells have become widely used for seawater analysis in recent years and their associated matrix effects are described. A re-examination of all categories of matrix effects, whose main origin is salinity, was thus undertaken to assess how much they are liable to alter the data. Interferences were classified into four types, each of which was examined in order to show its influence on the...
Tipo: Text Palavras-chave: Nutrient; Determination; Seawater; Estuarine water; Segmented-flow analysis; Matrix effects.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00057/16843/14530.pdf
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