High-temperature separation with polymer-coated fiber in packed capillary gas chromatography.
High-temperature gas chromatographic separation of several synthetic polymer mixtures with Dexsil-coated fiber-packed columns was studied. A bundle of heat-resistant filaments, Zylon, was longitudinally packed into a short metal capillary, followed by the conventional coating process with Dexsil 300 material. Prior to the packing process the metal capillary was deactivated by the formation of a silica layer. The typical size of the resulting column was 0.3-mm i.d., 0.5-mm o.d., 1-m length, and packed with about 170 filaments of the Dexsil-coated Zylon. The column temperature could be elevated up to 450 degrees C owing to the good thermal stability of the fiber, Dexsil coating, and metal capillary; furthermore, this allowed the separation of low-volatile compounds to be studied.
Saito
Yoshihiro
Y
School of Materials Science, Toyohashi University of Technology, Toyohashi 441-8580, Japan.
Ogawa
Mitsuhiro
M
Imaizumi
Motohiro
M
Ban
Kazuhiro
K
Abe
Akira
A
Takeichi
Tsutomu
T
Wada
Hiroo
H
Jinno
Kiyokatsu
K
D002849:Chromatography, Gas / Q000379:methods; D015394:Molecular Structure; D010080:Oxazoles / Q000737:chemistry; D011108:Polymers / Q000032:analysis* / Q000737:chemistry; D012680:Sensitivity and Specificity; D017655:Silicon Compounds / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry; D013696:Temperature; D013997:Time Factors
C516598:Dexsil 300; D010080:Oxazoles; D011108:Polymers; D017655:Silicon Compounds; C450140:poly(4-phenylene-2,6-benzobisoxazole); D012822:Silicon Dioxide