A portable battery-powered flow injection monitor for the in situ analysis of nitrate in natural waters
Date
1993Author
Blundell, NJ
Hopkins, A
Worsfold, PJ
Casey, H
Subject
3401 Analytical Chemistry 34 Chemical Sciences
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Show full item recordAbstract
<jats:p>The design and performance of a portable, automated flow injection (FI)-based photometric monitor are described. The system is controlled by an in-house microcomputer system that enables the monitor (including a solid state detector) to operate from a 12 V battery supply. The monitor uses the cadmium reduction/diazotization method to analyse for nitrate with a linear range of 0 to 12 mg l<jats:sup>-1</jats:sup>and a limit of detection of 0.05 mg l<jats:sup>-1</jats:sup>(NO<jats:sub>3</jats:sub>-N). The hardware and software design, monitor performance and results obtained during unattended operation are presented.</jats:p>
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Publisher
Hindawi Limited
Place of Publication
England
Journal
Journal of Automatic Chemistry
Volume
15
Issue
5
Pagination
159-166
Author URL
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