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A PORTABLE FLOW INJECTION ANALYZER FOR THE IN SITU DETERMINATION OF FILTERABLE REACTIVE PHOSPHORUS (FRP) IN FRESHWATER.

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Titel: A PORTABLE FLOW INJECTION ANALYZER FOR THE IN SITU DETERMINATION OF FILTERABLE REACTIVE PHOSPHORUS (FRP) IN FRESHWATER.
Autoren: Mankasingh, Utra1 (AUTHOR) utra.mankasingh@bristol.ac.uk, Worsfold, PaulJ.1 (AUTHOR)
Quelle: Instrumentation Science & Technology. Mar/Apr2010, Vol. 38 Issue 2, p187-200. 14p. 2 Diagrams, 3 Charts, 1 Graph.
Schlagwörter: *FLOW injection analysis, *PHOSPHORUS, *CELLULOSE acetate, *WATERSHEDS
Geografische Kategorien: ENGLAND
Abstract: The development and deployment of a portable flow injection analyzer for continuous, real-time monitoring of filterable reactive phosphorus (FRP) in the Tamar catchment is described. The optimized method can be used for the determination of FRP in freshwater systems (4-150 μg L-1 P) and is capable of sampling with high temporal resolution (up to 15 samples h-1). The analyzer, fitted with a pre-filter and an in-line membrane filter (0.45 μm, cellulose acetate), was used in situ (bank-side and shipboard deployment) to provide real-time FRP data and in the laboratory to determine FRP in freshwater samples. The portable FRP analyzer was reproducible (RSD < 5%; n = 3) over the range 4-150 μg L-1 P and accurate, achieving good agreement with a laboratory based air-segmented continuous flow analyzer reference method for a range of freshwater samples from the Tamar catchment in SW England. [ABSTRACT FROM AUTHOR]
Datenbank: Academic Search Index
Beschreibung
Abstract:The development and deployment of a portable flow injection analyzer for continuous, real-time monitoring of filterable reactive phosphorus (FRP) in the Tamar catchment is described. The optimized method can be used for the determination of FRP in freshwater systems (4-150 μg L-1 P) and is capable of sampling with high temporal resolution (up to 15 samples h-1). The analyzer, fitted with a pre-filter and an in-line membrane filter (0.45 μm, cellulose acetate), was used in situ (bank-side and shipboard deployment) to provide real-time FRP data and in the laboratory to determine FRP in freshwater samples. The portable FRP analyzer was reproducible (RSD < 5%; n = 3) over the range 4-150 μg L-1 P and accurate, achieving good agreement with a laboratory based air-segmented continuous flow analyzer reference method for a range of freshwater samples from the Tamar catchment in SW England. [ABSTRACT FROM AUTHOR]
ISSN:10739149
DOI:10.1080/10739141003594594