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dc.contributor.author Cecchini, Stefano en_US
dc.contributor.author Rocchina Caputo, Anna en_US
dc.date.accessioned 2012-03-02T22:08:55Z en_US
dc.date.available 2012-03-02T22:08:55Z en_US
dc.date.issued 2012 en_US
dc.identifier.citation Stefano Cecchini, Anna Rocchina Caputo. (2012). A Direct Spectrophotometric Assay for Evaluating Nitrate-Nitrogen in Intensive Aquaculture Systems. The Israeli Journal of Aquaculture - Bamidgeh, 64, 6 pp. en_US
dc.identifier.issn 0792-156X en_US
dc.identifier.other IJA_64.2012.698
dc.identifier.uri http://hdl.handle.net/10524/22921 en_US
dc.description.abstract This paper describes a simple spectrophotometric procedure for determining NO3--N in water samples. In the proposed method, NO2--N of a water sample is first removed from the water with sulfamic acid. Then, NO3--N is reduced to NO2--N using vanadium (III) chloride and a detection reagent is added. When rapid collection of data is necessary, this method can be adapted to a microtechnique using a 96-well microplate, resulting in a detection limit of 5 NO3--N mg/l. Using a larger volume spectrophotometer cell (5 cm) lowers the detection limit to 0.5 NO3--N mg/l. The proposed method is applicable for routine analysis of water in aquaculture systems and wastewaters in which medium-high NO3--N concentrations are expected. Benefits of the method are reduction of the laborious preparation and avoidance of contact with the harmful substances typical of the cadmium reduction method. en_US
dc.format.extent 6 pages en_US
dc.publisher Israeli Journal of Aquaculture - BAMIGDEH en_US
dc.relation.ispartofseries The Israeli Journal of Aquaculture - Bamidgeh en_US
dc.subject.lcsh Fish culture--Israel--Periodicals. en_US
dc.subject.lcsh Fish culture--Periodicals. en_US
dc.subject.lcsh Aquaculture--Israel--Periodicals. en_US
dc.subject.lcsh Aquaculture--Periodicals. en_US
dc.title A Direct Spectrophotometric Assay for Evaluating Nitrate-Nitrogen in Intensive Aquaculture Systems en_US

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