The carbohydrate compositions of poplar Ⅰ-214 and Chinese fir were investigated by the methods of hydrolysis and HPLC. The result showed that the contents of glucose, xylose and arabinose in poplar I-214 are higher t...The carbohydrate compositions of poplar Ⅰ-214 and Chinese fir were investigated by the methods of hydrolysis and HPLC. The result showed that the contents of glucose, xylose and arabinose in poplar I-214 are higher than those in Chinese fir, while contents of rhamnose and mannose in poplar I-214 are lower than those in Chinese fir.展开更多
The volatile organic compounds(VOCs) are emitted by a wide array of products, which include a variety of chemicals, some of them may have short- and long-term adverse health effects. Several analytical instrument incl...The volatile organic compounds(VOCs) are emitted by a wide array of products, which include a variety of chemicals, some of them may have short- and long-term adverse health effects. Several analytical instrument including gas chromatograph, high preferment liquid chromatograph, mass spectrometry and solid phase microextraction (SPME) technique were used in this study. The results showed the aldehyde and ketone components of Chinese fir wood were little composed of formaldehyde, syn- acetaldehyde, anti-acetadehyde and acrolein, VOCs obtained by Tenax GR absorber consisted of the major component cedrene (42.92%) and another 28 components, and the major components of the VOCs from the sample by using solid phase microextraction (SPME) technique were cedrene and cedrol.展开更多
基金Supported by key foundation research project (G1999016001) of China and Japan International Cooperation Agency.
文摘The carbohydrate compositions of poplar Ⅰ-214 and Chinese fir were investigated by the methods of hydrolysis and HPLC. The result showed that the contents of glucose, xylose and arabinose in poplar I-214 are higher than those in Chinese fir, while contents of rhamnose and mannose in poplar I-214 are lower than those in Chinese fir.
基金Supported by key foundation research project (G1999016001) of China and Japan International Cooperation Agency.
文摘The volatile organic compounds(VOCs) are emitted by a wide array of products, which include a variety of chemicals, some of them may have short- and long-term adverse health effects. Several analytical instrument including gas chromatograph, high preferment liquid chromatograph, mass spectrometry and solid phase microextraction (SPME) technique were used in this study. The results showed the aldehyde and ketone components of Chinese fir wood were little composed of formaldehyde, syn- acetaldehyde, anti-acetadehyde and acrolein, VOCs obtained by Tenax GR absorber consisted of the major component cedrene (42.92%) and another 28 components, and the major components of the VOCs from the sample by using solid phase microextraction (SPME) technique were cedrene and cedrol.
