TY - JOUR
T1 - A submersible battery-powered flow injection (FI) sensor for the determination of nitrate in estuarine and coastal waters.
AU - David, Anthony R.J.
AU - McCormack, Trevor
AU - Worsfold, Paul J.
PY - 1999
Y1 - 1999
N2 - 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.
AB - 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.
U2 - 10.1155/S1463924699000012
DO - 10.1155/S1463924699000012
M3 - Article
SN - 1463-9246
VL - 21
SP - 1
EP - 9
JO - J Autom Methods Manag Chem
JF - J Autom Methods Manag Chem
IS - 1
ER -