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.