Abstract
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−.
References
S. R. Aston, in “Chemistry and Biogeochemistry of Estuaries”, ed. E. Olasson and I. Cato, 1980, Wiley, Chichester, 452.
H. M. Bosch, A. B. Rosenfield, R. Huston, H. R. Shipman, and R. L. Woodward, J. Am. Water Works A., 1950, 42, 161.
J. R. Clinch, P. J. Worsfold, and H. Casey, Anal. Chim. Acta, 1987, 200, 523.
H. Casey, R. T. Clarke, S. M. Smith, J. R. Clinch, and P. J. Worsfold, Anal. Chim. Acta., 1989, 227, 379.
N. J. Blundell, P. J. Worsfold, H. Casey, and S. Smith, Environ.Intern., 1995, 21, 205.
S. Karthikeyan, S. Hasigaya, T. Kajiya, and S. Hirata, Anal. Bioanal. Chem., 2004, in press.
G. Hanrahan, M. Gledhill, P. J. Fletcher, and P. J. Worsfold, Anal. Chim. Acta., 2001, 440, 55.
P. J. Worsfold, R. Clinch, and H. Casey, Anal. Chim. Acta., 1987, 197, 43.
P. C. F. C. Gardolinski, A. R. J. David, and P. J. Worsfold, Talanta, 2002, 58, 1015.
K. Higuchi and S. Motomizu, Anal.Sci., 1998, 15, 129.
S. Hirata, B. Vijayalekshmi Amma, S. Karthikeyan, and K. Toda, Anal.Sci., 2003, 19, 1687.
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Karthikeyan, S., Kajiya, T. Portable Flow-Injection Analyzer for Nitrite and Nitrate in Natural Water. ANAL. SCI. 20, 567–569 (2004). https://doi.org/10.2116/analsci.20.567
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DOI: https://doi.org/10.2116/analsci.20.567