An Overview of the Kjeldahl Method of Nitrogen Determination. Part I. Early History, Chemistry of the Procedure, and Titrimetric Finish

Sáez-Plaza, Purificación; Michałowski, Tadeusz; José Navas Sánchez, María; G. Asuero, Agustín; Wybraniec, Sławomir

doi:10.1080/10408347.2012.751786

Public

An Overview of the Kjeldahl Method of Nitrogen Determination. Part I. Early History, Chemistry of the Procedure, and Titrimetric Finish

Published in Critical Reviews in Analytical Chemistry • Jul 23, 2013

Authors:

Purificación Sáez-Plaza

Tadeusz Michałowski

María José Navas Sánchez

Abstract

In 1883 Kjeldahl devised a method for the determination of nitrogen, which has become a classical measurement in analytical chemistry and has been used extensively over the past 130 years. In the original method, sulfuric acid alone was used as a digestion medium. The use of a catalyst in Kjeldahl d...

Subject

Kjeldahl method

Chemistry

Sulfuric acid

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