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Wood Research and Technology

Holzforschung

Cellulose – Hemicelluloses – Lignin – Wood Extractives

Editor-in-Chief: Salmén, Lennart

Editorial Board: Daniel, Geoffrey / Militz, Holger / Rosenau, Thomas / Sixta, Herbert / Vuorinen, Tapani / Argyropoulos, Dimitris S. / Balakshin, Yu / Barnett, J. R. / Burgert, Ingo / Rio, Jose C. / Evans, Robert / Evtuguin, Dmitry V. / Frazier, Charles E. / Fukushima, Kazuhiko / Gindl-Altmutter, Wolfgang / Glasser, W. G. / Holmbom, Bjarne / Isogai, Akira / Kadla, John F. / Koch, Gerald / Lachenal, Dominique / Laine, Christiane / Mansfield, Shawn D. / Morrell, J.J. / Niemz, Peter / Potthast, Antje / Ragauskas, Arthur J. / Ralph, John / Rice, Robert W. / Salin, Jarl-Gunnar / Schmitt, Uwe / Schultz, Tor P. / Sipilä, Jussi / Takano, Toshiyuki / Tamminen, Tarja / Theliander, Hans / Welling, Johannes / Willför, Stefan / Yoshihara, Hiroshi


IMPACT FACTOR 2018: 2.579

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Volume 67, Issue 7

Issues

Quantification of mobilized copper(II) levels in micronized copper-treated wood by electron paramagnetic resonance (EPR) spectroscopy

Wei Xue
  • Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, V6T 1Z1 Canada
  • Other articles by this author:
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/ Pierre Kennepohl
  • Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, V6T 1Z1 Canada
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/ John N.R. Ruddick
  • Corresponding author
  • Department of Wood Science, University of British Columbia, 2424 Main Mall, Vancouver, British Columbia, V6T 1Z4 Canada
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Published Online: 2013-02-07 | DOI: https://doi.org/10.1515/hf-2012-0136

Abstract

Sapwood sawdust from southern pine was treated with micronized copper (MC) under various conditions and the mobilized copper(II) (Cumob) concentrations were determined in the treated wood by electron paramagnetic resonance (EPR) spectroscopy. The spectral parameters for the copper sulfate (CuSO4)-treated sapwood and those of the MC-treated sapwood were very similar. A linear correlation was found between the intensities of copper (Cu) EPR spectra and those of Cu energy-dispersive X-ray fluorescence spectroscopy in a series of CuSO4-treated sapwood reference samples. Thus, the EPR signal intensities could be reliably correlated to the mass of reacted Cu present using this calibration curve. The amount of the Cumob in sawdust treated by MC suspensions increased during the first 2–3 days after the initial treatment and then reached a maximum during the 7-day monitoring period. In the case of the treatment with MC alone or MC azole, an increased MC concentration led to an elevated amount of Cu (to a maximum of ∼0.23% Cu) solubilized by the sapwood. If the wood was treated with MC quat, the Cumob initially increased, but at higher concentrations the Cumob content decreased, due to the interference by the quat cobiocide on the acid reaction between the wood and the basic Cu carbonate. An examination of commercially-treated wood confirmed the laboratory observations.

Keywords: copper-treated wood; didecyldimethylammonium carbonate (DDAC); electron paramagnetic resonance (EPR) spectroscopy; energy-dispersive X-ray fluorescence spectroscopy (XRF); micronized copper azole (MCA); micronized copper preservative; micronized copper quat (MCQ); southern pine; tebuconazole

References

  • Astilleros, J.M., Pina, C.M., Fernandez-Diaz, L., Lopez-Andres, S. (1998) Malachite crystallization in a diffusing-reacting system. Cryst. Res. Technol. 33:51–57.Google Scholar

  • AWPA (2012) Standard A9-08. Standard method for analysis of treated wood and treating solutions by X-ray spectroscopy. American Wood Protection Association, Birmingham, AL.Google Scholar

  • Choi, B., Ruddick, J.N.R. (2007) Corrosion of metal fasteners in contact with copper preservative treated wood. International Research Group on Wood Preservation, Doc. No. IRG/WP 07-20370.Google Scholar

  • Daniels, C.R. (1992) Determination of didecyldimethylammonium chloride on wood surfaces by HPLC with evaporative light scattering detection. J. Chromatogr. Sci. 30:497–499.Google Scholar

  • Freeman, M.H., McIntyre, C.R. (2008) A comprehensive review of copper-based wood preservatives with a focus on new micronized or dispersed copper systems. For. Prod. J. 58:6–27.Google Scholar

  • Hoffmann, S.K., Goslar, J., Ratajczak, I., Mazela, B. (2008) Fixation of copper-protein formulation in wood: part 2. Molecular mechanism of fixation of copper(II) in cellulose, lignin and wood studied by EPR. Holzforschung 62:300–308.Web of ScienceGoogle Scholar

  • Hughes, A.S., Murphy, R.J., Gibson J.F., Cornfield, J.A. (1994) Electron paramagnetic resonance (EPR) spectroscopic analysis of copper based preservatives in Pinus sylvestris. Holzforschung 48:91–98.CrossrefGoogle Scholar

  • Janod, E., Leonyuk, L., Maltsev, V. (2000) Experimental evidence for a spin gap in the S=1/2 quantum antiferromagnetic Cu2(OH)2CO3. Solid State Comm. 116:513–518.Google Scholar

  • Jiang, X., Ruddick, J.N.R. (2004) Leaching resistance of copper amine-treated Scots pine. For. Prod. J. 54:213–216.Google Scholar

  • Jin, L., Walcheski, P., Preston, A. (2010) Studies of the effect of pH on copper availability in copper based preservatives. International Research Group on Wood Protection, IRG/WP 10-30549.Google Scholar

  • Krzystek, J., Sienkiewicz, A., Pardi, L., Brunel, L.C. (1997) DPPH as a standard for high-field EPR. J. Magn. Reson. 125:207–211.Google Scholar

  • Leach, R.M., Zhang, J. (2006) U.S. Patent Application 20060288904.Google Scholar

  • Lee, M.J., Cooper, P.A. (2010) Copper monoethanolamine adsorption in wood and its relation with cation exchange capacity (CEC). Holzforschung 64:653–658.Web of ScienceGoogle Scholar

  • McCallan, S.E.A. (1949) Nature of the fungicidal action of copper and sulfur. Bot. Rev. 15:629–643.Google Scholar

  • Montag, J., Schreiber, L., Schönherr, J. (2006) An in vitro study of the nature of protective activities of copper sulphate, copper hydroxide and copper oxide against conidia of Venturia inaequalis. J. Phytopathol. 154:474–481.Google Scholar

  • Scaife, J.F. (1957) The solubility of malachite. Can. J. Chem. 35:1332–1340.Google Scholar

  • Stirling, R., Morris, P.I. (2010) Mobility of copper from MCQ in shell-treated wood exposed above ground. International Research Group on Wood Preservation, Doc. No. IRG/WP 10-30534.Google Scholar

  • Ung, Y.T., Cooper, P.A. (2005) Copper stabilization in ACQ treated wood—retention, temperature and species effects. Holz Roh-Werks. 63:186–191.Google Scholar

  • Xie, C., Ruddick, J.N.R., Rettig, S., Herring, G. (1995) Fixation of ammoniacal copper preservatives: reaction of vanillin, a lignin model compound with ammoniacal copper sulphate solution. Holzforschung 49:483–490.CrossrefGoogle Scholar

  • Xue, W., Kennepohl, P., Ruddick, J.N.R. (2010) A comparison of the chemistry of alkaline copper and micronized copper treated wood. International Research Group on Wood Preservation, Doc. No. IRG/WP 10-30528.Google Scholar

  • Xue, W., Kennepohl, P., Ruddick, J.N.R. (2012) Investigation of copper solubilization and reaction in micronized copper treated wood by electron paramagnetic resonance (EPR) spectroscopy. Holzforschung 66:889–895.Web of ScienceGoogle Scholar

  • Zhang, J., Zhang, W. (2009) U.S. Patent No. 7,632,567, 2009, Issued Dec. 15.Web of ScienceGoogle Scholar

  • Zhang, J., Ziobro, R. (2009) Micronized copper preservative systems: observations on the release of cupric ion (Cu2+) from treated wood and performance against wood decay fungi. International Research Group on Wood Preservation, Doc. No. IRG/WP 09-30519.Google Scholar

About the article

Corresponding author: John N.R. Ruddick, Department of Wood Science, University of British Columbia, 2424 Main Mall, Vancouver, British Columbia, V6T 1Z4 Canada, e-mail:


Received: 2012-08-15

Accepted: 2013-01-09

Published Online: 2013-02-07

Published in Print: 2013-10-01


Citation Information: Holzforschung, Volume 67, Issue 7, Pages 815–823, ISSN (Online) 1437-434X, ISSN (Print) 0018-3830, DOI: https://doi.org/10.1515/hf-2012-0136.

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