Portable Flow-Injection Analyzer for Nitrite and Nitrate in Natural Water
A portable flow-injection analyzer with solid-state spectrophotometric detection for the determination of nitrite and nitrate is described. It utilizes the Griess-Saltzman reaction. The instrument comprises a two-channel peristaltic pump, two six-port injection valves and a mini cadmium column betwe...
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| Veröffentlicht in: | Analytical Sciences 2004, Vol.20(3), pp.567-569 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | A portable flow-injection analyzer with solid-state spectrophotometric detection for the determination of nitrite and nitrate is described. It utilizes the Griess-Saltzman reaction. The instrument comprises a two-channel peristaltic pump, two six-port injection valves and a mini cadmium column between them. The sample loops were connected serially. The detection limits of the method were less than 7 µg l-1 for NO2- and 10 µg l-1 for NO3-. |
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| ISSN: | 0910-6340 1348-2246 |
| DOI: | 10.2116/analsci.20.567 |