| http://www.w3.org/ns/prov#value | - Most in situ nutrients analyser-probes, such as SubChem Analyzer and Wiz probes, measure automatically various dissolved chemical species, using wet chemical techniques of in-flow analysis based on standard laboratory analytical methods (spectrophotometry and fluorimetry) developed as long as a century ago (Varney, 2000; Thouron et al., 2003).
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