Diphenylamine (DPA) test
A broad-spectrum presumptive colour test for nitrate and nitrite compounds, producing a blue-green coloration. Reactive with multiple oxidising agents, so environmental context is essential to interpreting a positive result.
A broad-spectrum presumptive colour test for nitrate and nitrite compounds, producing a blue-green coloration. Reactive with multiple oxidising agents, so environmental context is essential to interpreting a positive result.
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