Modern analyzers for the determination of nitrogen by the Kjeldahl method

Abstract

by the Kjeldahl method are systematized: digesters, distillers, and titrators produced by such well-known companies as Buchi (Switzerland), C. Gerhardt, Behr Labor-Technik GmbH and FoodALYT GmbH (Germany), Foss Tecator (Denmark, Sweden), VELP Scientifica (Italy), J.P.Selecta (Spain), Hanon Instruments (China), OOO VPK Sibagropribor and OOO Vilitek (Russia). The data on the characteristics of the analyzers is also provided and includes the number and volume of test tubes (flasks), the time of mineralization, distillation and analysis, mass (volume) of the sample, and the lower limit of nitrogen detection.