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Titolo:
Simultaneous determination of nutrients (ammonium and phosphate) in marineaquaculture effluents by flow analysis
Autore:
Tovar, A; Moreno, C; Manuel-Vez, MP; Garcia-Vargas, M;
Indirizzi:
Univ Cadiz, Fac Sea Sci, Dept Analyt Chem, Cadiz 11510, Spain Univ Cadiz Cadiz Spain 11510 a Sci, Dept Analyt Chem, Cadiz 11510, Spain
Titolo Testata:
QUIMICA ANALITICA
fascicolo: 1, volume: 20, anno: 2001,
pagine: 37 - 45
SICI:
0212-0569(2001)20:1<37:SDON(A>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
INJECTION ANALYSIS; WATER; SEAWATER;
Keywords:
aquaculture; nutrients; phosphate; ammonium; simultaneous determination; continuous determination; flow injection; seawater;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Moreno, C Univ Cadiz, Fac Sea Sci, Dept Analyt Chem, Cadiz 11510, Spain Univ Cadiz Cadiz Spain 11510 t Analyt Chem, Cadiz 11510, Spain
Citazione:
A. Tovar et al., "Simultaneous determination of nutrients (ammonium and phosphate) in marineaquaculture effluents by flow analysis", QUIM ANAL, 20(1), 2001, pp. 37-45

Abstract

In this work, a flow analysis method with spectrophotometric detection hasbeen developed for the simultaneous determination of phosphate (P-PO43-) and ammonium (N-NH4+) in marine aquaculture effluents. The method is based on the dual combination of a reversed flow injection system and a continuousflow system without injection. The performance of the system was optimisedby using both an univariate optimisation and a modified simplex method. The method meets the requirements of marine fish farms for monitoring the quality of input and output water streams, particularly in terms of simplicityand the high sampling rate allowable. Besides, it has a limit of detectionof 3.6 mug L-1 P-PO43- and 19.8 mug L-1 N-NH4+ and relative standard deviations (RTSD) of 6.9% and 3.6%, respectively.

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Documento generato il 05/12/20 alle ore 13:13:15