Fertilizers. Determination of N-(n-Butyl)thiophosphoric acid triamide (NBPT) and N-(n-Propyl)thiophosphoric acid triamide (NPPT). Method using high-performance liquid chromatography (HPLC) Ingestion-build-93833 Testing requirements of an LC-PC

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Fertilizers. Determination of N-(n-Butyl)thiophosphoric acid triamide (NBPT) and N-(n-Propyl)thiophosphoric acid triamide (NPPT). Method using high-performance liquid chromatography (HPLC) Ingestion-build-93833 Testing requirements of an LC-PC1 Scope This European Standard specifies a method for the quantitative determination of the urease inhibitors N (n Butyl)thiophosphoric acid triamide (NBPT, CAS No. 94317 64 3) and N (n Propyl)thiophosphoric acid triamide (NPPT, CAS No. 916809 14 8) content in urea based fertilizers using high performance liquid chromatography (HPLC).