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Rapid pentachlorophenol evaluation in solid matrixes by second derivative UV spectroscopy for application to wood and
M Secchieri1, C A Benassi, S Pastore
1Università di Padova, Dipartimento di Scienze Farmaceutiche, Italy.
Abstract:
A method for the quail-quantitative evaluation of pentachlorophenol (PCP) in solid matrixes has been developed. The procedure is based on solid-liquid extraction of solid samples (leather or wood), followed by purification on a cyanopropyl column and determination of the preservative by second derivative UV spectroscopy considering the PCP A peak-through value (304-297 nm). The method allows rapid PCP determination in the concentration range 1-40 micrograms/mL; any matrix interference is avoided by the purification step and recoveries of the preservative were 99.12% (RSD% 0.13) for the leather matrix and 98.03 (RSD% 0.17) for the wood matrix.