Influence of sample pretreatment on the extractability of polycyclic aromatic hydrocarbons (PAH) from forest floor horizons

verfasst von

Georg Guggenberger, Martin Pichler, Wolfgang Zech

Abstract

Extraction of PAH from Oh-horizon material after dispersion of air-dried samples in water resulted in a 80% higher yield of 20 PAH species compared to extraction of air-dried, freeze-dried or ground samples. Concurrently, the free surface area (BET method) of the organic matter increased. It was assumed that dispersion resulted in a disaggregation and/or stretching of organic aggregates, which makes interior aggregate regions available to the extractant that were previously not accessible for the extradant due to diffusion barriers.

Externe Organisation(en)

Universität Bayreuth

Typ

Artikel

Journal

Zeitschrift fur Pflanzenernahrung und Bodenkunde

Band

159

Seiten

405-407

Anzahl der Seiten

3

ISSN

0044-3263

Publikationsdatum

08.1996

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Bodenkunde

Elektronische Version(en)

https://doi.org/10.1002/jpln.1996.3581590415 (Zugang: Geschlossen)