@article { ISI:000330365900012,
	title = {Quantification of mobilized copper(II) levels in micronized copper-treated wood by electron paramagnetic resonance (EPR) spectroscopy},
	journal = {HOLZFORSCHUNG},
	volume = {67},
	number = {7},
	year = {2013},
	month = {OCT},
	pages = {815-823},
	abstract = {Sapwood sawdust from southern pine was treated with micronized copper (MC) under various conditions and the mobilized copper(II) (Cu-mob) 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 energydispersive 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 Cu-mob 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 similar to 0.23\% Cu) solubilized by the sapwood. If the wood was treated with MC quat, the Cu-mob initially increased, but at higher concentrations the Cu-mob 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.},
	issn = {0018-3830},
	doi = {10.1515/hf-2012-0136},
	author = {Xue, Wei and Kennepohl, Pierre and Ruddick, John N. R.}
}
