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DatoValore
TitleDirect measurement of nutrient concentrations in freshwaters with a miniaturized analytical probe: evaluation and validation
AbstractThis work deals with the evaluation of the aqueous concentrations of dissolved reactive phosphorus (DRP), total phosphorus (TP), and ammonium nitrogen (N-NH4) in surface water by means of direct online instrumentation. A portable, submersible, and automated analyzer designed to measure dissolved and total nutrient concentrations characterized by miniaturization of the entire analytical process was tested against laboratory methods. A total number of 36 water samples of different origin (i.e., rain, river, lake, and sewage waters) were analyzed and used in the comparison of DRP, TP, and N-NH4 data. Raw data were distributed in a broad range of concentrations: 5-299 ?g P/L for DRP, 7-97 ?g P/L for TP, and 11-332 ?g N/L for N-NH4. Regression analysis underlined a high significant correlation between the measures of the probe and those of the laboratory (0.6 < R 2 < 0.9; p < 0.001) and pointed out the effectiveness of the new instrument in representing a broad range of nutrient concentrations.
SourceEnvironmental monitoring and assessment (Print) 189 (4), pp. 144
KeywordsField measurementMiniaturized probeNutrientsTotal phosphorusWater pollution
JournalEnvironmental monitoring and assessment (Print)
EditorKluwer Academic Publishers, London, Paesi Bassi
Year2017
TypeArticolo in rivista
DOI10.1007/s10661-017-5847-0
AuthorsCopetti, D.; Valsecchi, L.; Capodaglio, A. G.; Tartari, G.
Text370661 2017 10.1007/s10661 017 5847 0 Scopus 2 s2.0 85014766380 ISI Web of Science WOS 000398714200010 Field measurement Miniaturized probe Nutrients Total phosphorus Water pollution Direct measurement of nutrient concentrations in freshwaters with a miniaturized analytical probe evaluation and validation Copetti, D.; Valsecchi, L.; Capodaglio, A. G.; Tartari, G. Istituto di Ricerca sulle Acque, Italy; Universita degli Studi di Pavia This work deals with the evaluation of the aqueous concentrations of dissolved reactive phosphorus DRP , total phosphorus TP , and ammonium nitrogen N NH4 in surface water by means of direct online instrumentation. A portable, submersible, and automated analyzer designed to measure dissolved and total nutrient concentrations characterized by miniaturization of the entire analytical process was tested against laboratory methods. A total number of 36 water samples of different origin i.e., rain, river, lake, and sewage waters were analyzed and used in the comparison of DRP, TP, and N NH4 data. Raw data were distributed in a broad range of concentrations 5 299  g P/L for DRP, 7 97  g P/L for TP, and 11 332  g N/L for N NH4. Regression analysis underlined a high significant correlation between the measures of the probe and those of the laboratory 0.6 < R 2 < 0.9; p < 0.001 and pointed out the effectiveness of the new instrument in representing a broad range of nutrient concentrations. 189 Published version http //www.scopus.com/record/display.url eid=2 s2.0 85014766380 origin=inward Direct measurement of nutrient concentrations in freshwaters with a miniaturized analytical probe evaluation and validation EMAS D 16 03273_R1.pdf Articolo in rivista Kluwer Academic Publishers 0167 6369 Environmental monitoring and assessment Print Environmental monitoring and assessment Print Environ. monit. assess. Print Environmental monitoring and assessment. Print lucia.valsecchi VALSECCHI LUCIA gianni.tartari TARTARI GIANNI diego.copetti COPETTI DIEGO