摘要：AbstractWillow (Salix matsudana) bark is the bark of willow trees, it is rich in resources. Extracting these resources becomes difficult due to the relative lack of systematic and in-depth analysis of the total chemical composition. Analysis was performed using TDS-GC/MS, TG, FTIR and PY-GC/MS techniques. Results and discussion: the extracts form volatile organic compounds are mainly included in the analysis of TDS-GC/MS, such as, organic acids, exters, alcohols, etc. Extracts are rich in VOCs:1,2-Benzenedicarboxylic acid, bis(2-methylpropyl) ester, its function is mainly as plasticizer. FTIR analysis are further confirmed, the ingredients of total extracts include ethers, The treatment of total heat loss is divided into two distinct phases: the first phase of 50 °C to 100 °C, the second phase of 150 °C to 250 °C, the sequence of quality loss is the second and the first stage, important turning point temperature is 245 °C, with significant changes in quality, for example, high polymer pyrolysis into small volatile molecules. In addition, various pyrolysis VOCs have been analyzed by PY-GC/MS, And have good development space, such as, Carbamic acid, monoammonium salt (4.80%), Glycolaldehyde dimer (4.04%), Catechol (0.44%). etc. Both of them have good development prospects, including many new chemical components produced by the pyrolysis of total extracts and residues, which is a new method to provide high quality applications.
关键词：Willow bark;Volatile organic component (VOC);Extraction of organic solvents;Component characteristics
