Abstract
Abstract As an important bio-material, volatile organic compounds (VOCs) emissions of wood composites have increasing more concerns. The headspace solid-phase microextraction (HSSPME) was used to extract the VOCs emissions from larix gmelini particles. The HSSPME procedure was compared to conventional static headspace (HS) analysis for the VOCs emissions. Both methods gave the similar results, but the HSSPME was much more sensitive and exhibited better precision. Several parameters of the extraction and desorption procedure were studied and optimized (such as extraction temperature, extraction time, adsorption time, desorption time). The optimal parameters were obtained as extraction temperature 60 °C, extraction time 40 min, adsorption time 30 min and desorption time 40 min.The components of VOCs emissions in the samples were identified according to the GC-MS total ion chromatograms. The characteristic emissions obtained by HSSPME-GC-MS were alpha-pinene, beta-phellandrene, hexanal and 3- carene. Being a rapid, simple and practically non-interfering technique, HSSPME was successfully applied to analyze VOCs emissions in wood-composites.
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