Bestimmung von 3,4-Benzpyren in Brotgetreide

6533b83afe1ef96bd12a781c

RESEARCH PRODUCT

Bestimmung von 3,4-Benzpyren in Brotgetreide

M. Köhler M. Köhler K. H. Bergert H. Schumacher

subject

Chromatography Chemistry Clinical Biochemistry General Materials Science General Medicine Analytical Chemistry

description

Es wird eine Methode zur sicheren Abtrennung und Bestimmung von 3,4-Benzpyren in Brotgetreide beschrieben. Die aromatischen Kohlenwasserstoffe werden nach Extraktion mit Nitromethan von gro\en Mengen wachsartiger Begleitstoffe durch Ausfrieren abgetrennt, sAulenchromatographisch an Aluminiumoxid fraktioniert und das 3,4-Benzpyren von anderen polycyclischen aromatischen Kohlenwasserstoffen chromatographisch an teilacetyliertem Papier getrennt. Die Bestimmung des aus dem Papier extrahierten 3,4-Benzpyren erfolgt durch Aufnahme von Fluorescenzspektren fester Losungen bei tiefen Temperaturen. Es konnen so noch 0,001 ppb 3,4-Benzpyren im Getreide erfa\t werden.

year	journal	country	edition	language
1965-01-01	Fresenius' Zeitschrift für analytische Chemie

https://doi.org/10.1007/bf00518915

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