A submersible battery-powered flow injection (FI) sensor for the determination of nitrate in estuarine and coastal waters
1999 ◽
Vol 21
(1)
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pp. 1-9
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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 coppercadmium reduction of nitrate to nitrite, and diazotization with N1NED and sulphanilamide. The limit of detection was 0.0014 mg l-1NO3-N and the linear range was 0.0014- 0.77 mg l-1with a 260 μl sample volume and a 20 mm path length flow cell. Results from submersed deployments in the Tamar estuary and North Sea are also reported.
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1995 ◽
Vol 17
(6)
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pp. 205-212
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2020 ◽
Vol 10
(03)
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pp. 395-401
1998 ◽
Vol 359
(3)
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pp. 311-320
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1990 ◽
Vol 229
◽
pp. 177-182
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