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Leaching behaviour of wood treated with creosote
L Becker1, G Matuschek, D Lenoir
1GSF-Forschungszentrum für Umwelt und Gesundheit, Institut für Okologische Chemie, Neuherberg, Germany. luzbecker@hotmail.com
Abstract:
The results of a laboratory investigation on the leaching behaviour of wood treated with creosote and of untreated wood are reported. A special leaching test derived from the German standard method DEV S4 test (DIN 38414) has been developed. Samples were leached in deionized water, in a solution buffered at pH 4.7 and in a solution of humic substances. The organic fraction of the leachate was extracted using liquid-liquid extraction. The extracts were analysed qualitatively with GC/MSD and quantified with GC/FID. The results were compared with those of Soxhlet-extracts from creosote-treated wood.