ORCID
- Worsfold, Paul: 0000-0002-2262-7723
Abstract
The design, construction and performance of a remotely deployed submersible flow injection-based nutrient (total oxidized nitrogen) sensor are described. The sensor featured a custom-built microcomputer and a solid-state, flow-through spectrophotometric detector, and the derivatization chemistry was based on in-line copper-cadmium reduction of nitrate to nitrite, and diazotization with N1NED and sulphanilamide. The limit of detection was 0.0014 mg l(-1) NO3-N and the linear range was 0.0014- 0.77 mg l(-1) with a 260 microl sample volume and a 20 mm path length flow cell. Results from submersed deployments in the Tamar estuary and North Sea are also reported.
DOI
10.1155/S1463924699000012
Publication Date
1999-01-01
Publication Title
J Autom Methods Manag Chem
Volume
21
Issue
1
ISSN
1463-9246
Organisational Unit
School of Geography, Earth and Environmental Sciences
First Page
1
Last Page
9
Recommended Citation
David, A. R., McCormack, T., & Worsfold, P. (1999) 'A submersible battery-powered flow injection (FI) sensor for the determination of nitrate in estuarine and coastal waters.', J Autom Methods Manag Chem, 21(1), pp. 1-9. Available at: https://doi.org/10.1155/S1463924699000012
