Summary
Three different methods for nitrate determination in environmental samples were comparatively examined. The influences of Cl−, NO −2 , Fe2+ and Fe3+ in different concentrations were also investigated. From the data obtained it is concluded that the cadmium reduction method is the most suitable for every type of environmental water samples. On the contrary, the electrode screening method suffers from many interferences and is not suitable for any type of sample. The direct spectrophotometric method has been found to be applicable mostly for fresh water samples.
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Raikos, N., Fytianos, K., Samara, C. et al. Comparative study of different techniques for nitrate determination in environmental water samples. Z. Anal. Chem. 331, 495–498 (1988). https://doi.org/10.1007/BF00467037
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DOI: https://doi.org/10.1007/BF00467037