Eine neue Methode zur Jodzahlbestimmung in Fetten und Ölen unter Verwendung von Pyridinsulfatdibromid

Analysis of Fatty Modifications Obtained by Action of Sulfuric Acid

“…This lack of constancy precludes the acceptance of such methods. The investigators in this laboratory have studied a number of other methods, such as the Margosches method (SI), the pyridine sulfate dibromide method of Rosenmund (38), and certain recorded variations of the Wijs method, such as the Wijs solution with excess of iodine and the Meigen and Winogradoff modification (32).…”

Methods of Isolation and Estimation of Sterols

“…The degree of unsaturation of cholesterol is measured commonly by the pyridine sulfate dibromide method of Rosenmund and Kuhnhenn (1923) or on a microscale (3-5 mg.) by the procedure of Yasuda (1931Yasuda ( , 1937, and using these methods the theoretical iodine value ( number ) of 65.8 is obtained with pure samples.…”

Cholesterol metabolism. 4. The neutral fraction of the faecal lipid of rats fed diets with low and high cholesterol contents

“…Iodine value. On large amounts of fractions this was determined by the method of Rosenmund & Kuhnhenn (1923). On certain samples the micro-modification of Yasuda (1931) was employed.…”