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Holzforschung

International Journal of the Biology, Chemistry, Physics, and Technology of Wood

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Microdistribution of copper in copper-ethanolamine (Cu-EA) treated southern yellow pine (Pinus spp.) related to density distribution

Jinzhen Cao1 / D. Pascal Kamdem2

1.

2.

Corresponding author. Department of Forestry, Michigan State University, East Lansing, MI, 48824-1222 USA

Citation Information: Holzforschung. Volume 59, Issue 1, Pages 82–89, ISSN (Online) 1437-434X, ISSN (Print) 0018-3830, DOI: 10.1515/HF.2005.013, June 2005

Publication History

Received:
February 24, 2004
Published Online:
2005-06-01

Abstract

The relationship between copper absorption and density distribution in wood cell walls was investigated in this study. The density distribution on layer level was obtained from two approaches: (1) calculation by using data obtained from literature; (2) microdistribution of carbon and oxygen atoms in the wood cell. The microdistribution of carbon and oxygen in untreated southern yellow pine (Pinus spp.) sapwood, as well as copper in cell walls of copper-ethanolamine (Cu-EA) treated wood was determined by scanning electron microscopy coupled with energy dispersive X-ray analysis (SEM-EDXA). Both approaches for density distribution led to the same result: the density was higher in the compound middle lamella and cell corners than in the secondary wall. The concentration/intensity of Cu, C and O in the cell wall follow the same trend as the density distribution; suggesting that density may play a major role in SEM-EDXA study of the distribution of metal-containing wood preservatives within the wood cell wall.

Keywords: cell wall; copper; density; microdistribution; SEM-EDXA

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