Nitrogen determination in sodium nitrate and fertilizer
Kjel Line and MultiDist: Nitrogen determination in sodium nitrate and fertilizer by devarda distillation
An easy, quick and sensitive method for the analysis of nitrogen in sodium nitrate using the Devarda method is described in this application note. Devarda distillation with the steam distillation unit MultiKjel was followed by boric acid titration on the Metrohm Eco Titrator. The Devarda method is used for the determination of nitrogen as sum parameter in nitrate and nitrite. However, this method is not suitable in the presence of organic compounds, calcium cyanamide or carbamide. Devarda’s alloy reacts with sodium hydroxide to form hydrogen. The produced hydrogen reduces the nitrate and nitrite to ammonia. The ammonia is then trapped in boric acid solution and titrated with standard sulfuric acid.
Daftar untuk mengunduh
Instrumen Terkait
Kjel Line
Unit distilasi uap terbaru BUCHI sangatlah akurat, memastikan penggunaan sumber daya yang berkelanjutan dan menawarkan keamanan maksimal selama pengoperasian. Instrumen ini telah didesain agar pas dengan kebutuhan individual Anda dan memungkinkan kinerja tertinggi dalam cara yang paling fleksibel.
Dist Line
Dist Line sangat serba guna dan didesain untuk berbagai jenis analit serta menawarkan keamanan operasional tertinggi. Instrumen ini sangat pas dengan kebutuhan individual Anda dan memungkinkan kinerja tertinggi dalam cara yang paling fleksibel.
