Nachweis und Bestimmung von Cystein in Wolle mit l-Fluor-2.4-dinitrobenzol
Open Access
- 1 August 1955
- journal article
- research article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 10 (8) , 457-462
- https://doi.org/10.1515/znb-1955-0809
Abstract
Untreated wool as well as wool treated with potassium cyanide, caustic soda, epichlorhydrin, sodium bisulfite, sodium bicarbonate and acetone, phenol, acetate buffer, wool heated 2 hours at 200[degree], and wool weathered for 5 months were hydro-lyzed with l-fluorine-2,4-dinitrobenzol at pH 5.0 and 60[degree]. S-Dinitro-phenyl cysteine can be separated from the hydrolyzate by paper electro-phoresis. The isolated compound was determined by spectrophotometry at 330 mu. By this new method the minimum content of cysteine in the wool preparations was determined.This publication has 1 reference indexed in Scilit:
- Esterification of the carboxyl groups in woolBiochemical Journal, 1951