A Direct Spectrophotometric Assay for Evaluating Nitrate-Nitrogen in Intensive Aquaculture Systems
Date
2012
Contributor
Advisor
Department
Instructor
Depositor
Speaker
Researcher
Consultant
Interviewer
Narrator
Transcriber
Annotator
Journal Title
Journal ISSN
Volume Title
Publisher
Israeli Journal of Aquaculture - BAMIGDEH
Volume
Number/Issue
Starting Page
Ending Page
Alternative Title
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.
Description
Keywords
Fish culture--Israel--Periodicals., Fish culture--Periodicals., Aquaculture--Israel--Periodicals., Aquaculture--Periodicals.
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.
Extent
6 pages
Format
Geographic Location
Time Period
Related To
Related To (URI)
Table of Contents
Rights
Rights Holder
Local Contexts
Collections
Email libraryada-l@lists.hawaii.edu if you need this content in ADA-compliant format.