Improved method of nitrogen determination by indophenol reaction

• Published in: Bunseki kagaku Vol. 10; no. 4; pp. 387 - 392
• Main Authors: NAKAI, Shuryo, TSUCHIYA, Fumiyasu
• Format: Journal Article
• Language: English
• Published: Tokyo Japan Science and Technology Agency 1961

The causes of errors in the indophenol colorimetry for nitrogen determination were made clear. The most important factor was the reaction temperature, which was followed by the method of mixing with antiformin, pH of the reaction mixture, and volume of reagents. In the modified method by the authors...