Determination of Nitrite by Flow Injection Spectrophotometry Using a Home-made Flow Cell Detector

Determination of Nitrite by Flow Injection Spectrophotometry Using a Home-made Flow Cell Detector

A simple, rapid, low cost and accurate determination using flow injection spectrophotometry with a home made flow cell detector, in combination with green LED and photodiode, had been developed for nitrite based on the Griess-Saltzman reaction, measuring the absorbance at 525 nm. The proposed system...

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Veröffentlicht in:Analytical Sciences 2003, Vol.19(12), pp.1687-1689
Hauptverfasser: HIRATA, Shizuko, AMMA, Bhavaniamma Vijayalekshmi, KARTHIKEYAN, Sathrugnan, TODA, Kei
Format: Artikel
Sprache:eng
Schlagworte:
Analysis methods
Analytical chemistry
Applied sciences
Chemistry
Equipment Design
Exact sciences and technology
Flow Injection Analysis
Natural water pollution
Nitrites - analysis
Pollution
Spectrometric and optical methods
Spectrum Analysis - instrumentation
Spectrum Analysis - methods
Water treatment and pollution
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Beschreibung
Zusammenfassung:A simple, rapid, low cost and accurate determination using flow injection spectrophotometry with a home made flow cell detector, in combination with green LED and photodiode, had been developed for nitrite based on the Griess-Saltzman reaction, measuring the absorbance at 525 nm. The proposed system is able to monitor nitrite in freshwater samples at a throughput of 60 samples per hour with a relative standard deviation (%RSD) of less than 2.4% and a detection limit of
ISSN:0910-6340
1348-2246
DOI:10.2116/analsci.19.1687