Autor: |
Rastetter, Adolf, Burkart, Franz, Fischer, Kurt |
Zdroj: |
Zeitschrift für Lebensmitteluntersuchung und -Forschung A; August 1974, Vol. 155 Issue: 5 p292-294, 3p |
Abstrakt: |
Summary A method is described to determine the residues of maleinhydracid (10–500 ppm) in tobacco in a simple and sufficiently accurate manner. It is based on alkaline hydrolysis, quick steam-destillation by means of zinc as reduction agent and nitrogen as innert gas. The distilled hydracin is changed in a yellow coloured substance by p-Dimethyl-aminobenzaldehyd and determined spectrophotometrically. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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