The substrate solution was then stored at −20°C right up until the ammonium and nitrate contents were being analyzed Using the San++ Continuous-Movement Analysator (Skalar Analytic GmbH, Erkelenz, Germany). Nitrate resolve was based on a reaction with hydrazinium sulfate, sulfanilamide and N-(1-naphthyl) ethylenediamine dihydrochloride which results in the formation of https://lillianv582nwd6.daneblogger.com/profile