Issue 12, 1984

Automatic potentiometric micro-determination of basic nitrogen in organic compounds

Abstract

Basic nitrogen is determined at the milligram level by potentiometric titration in a non-aqueous medium. Acetic acid is a suitable solvent for substances with very different structures, except from some amino acids that are soluble in perchloric acid and may therefore be determined by back-titration. The behaviour of some organic nitrogen compounds that do not exhibit a basic character because of a resonance phenomena, contrary to what is expected, is also explained. Titration graphs with sharp inflection points allow exact determinations for all the compounds examined.

Article information

Article type
Paper

Analyst, 1984,109, 1541-1543

Automatic potentiometric micro-determination of basic nitrogen in organic compounds

A. Pietrogrande, A. Guerrato, B. Bortoletti and G. D. Fini, Analyst, 1984, 109, 1541 DOI: 10.1039/AN9840901541

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