摘要
Perethylated-β-CD, perpentylated-β-CD and 2,6-di-O-pentyl-β-CD were coated onto the fused silica capillary by sol-gel process. The thermal stability of the three sol-gel columns was investigated by pyrolysis gas chromatography(PyGC). The PyGC results show that the sol-gel CDs columns have an outstanding thermal stability, compared with the conventional CDs columns. The temperature of preliminary pyrolysis of the CDs in sol-gel net can be as high as 300 ℃, of the alkylated-β-CDs are at 200℃. The column performances were also studied. The results show that the sol-gel CDs columns have a good separation ability to the disubstituted benzene isomers such as cresols and xylene isomers.
Perethylated-β-CD, perpentylated-β-CD and 2,6-di-O-pentyl-β-CD were coated onto the fused silica capillary by sol-gel process. The thermal stability of the three sol-gel columns was investigated by pyrolysis gas chromatography(PyGC). The PyGC results show that the sol-gel CDs columns have an outstanding thermal stability, compared with the conventional CDs columns. The temperature of preliminary pyrolysis of the CDs in sol-gel net can be as high as 300 ℃, of the alkylated-β-CDs are at 200℃. The column performances were also studied. The results show that the sol-gel CDs columns have a good separation ability to the disubstituted benzene isomers such as cresols and xylene isomers.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第11期2016-2018,共3页
Chemical Journal of Chinese Universities
基金
科技部重大专项基金 (批准号 :2 0 0 2 BA90 6A2 92 3 )资助
关键词
裂解气相色谱
溶胶-凝胶
热稳定性
环糊精
Pyrolysis gas chromatography
Sol-gel
Thermal stability
Cyclodextrin
