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[Comparison of various technics for determining nitrates in soil and vegetables]
Annales De La Nutrition Et De L'Alimentation
|January 1, 1980
Abstract:
In order to compare results obtained from various analytical techniques, nitrate determinations in soils and vegetables were made by four usual methods. These are a selective electrode, an autoanalyser with dialyser that determines nitrites following a nitrate reduction step by hydrazine sulfate, another autoanalyser that reduces nitrates with cadmium metal, and the usual DEVARDA method. Interferences and limitations of these techniques are discussed.
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