Column switching analysis with packed-capillary columns in gas chromatography.
By introducing sequentially connected two packed-capillary columns, a wide range of volatile compounds were successfully separated in gas chromatography.  The hyphenation of two packed-capillary columns of 1.0 mm i.d. was accomplished using a conventional 6-port valve, where the temperature of each column was individually controlled in the respective column ovens.  These columns were prepared with two different types of sorbents, each having a different selectivity, in order to separate a wide range of compounds, including permanent gases, volatile alcohols and other typical volatile organic compounds.  With a simple valve switching operation, the complex sample mixtures were rapidly separated and detected.
Department of Applied Chemistry, University of Yamanashi, Kofu 400–8511, Japan.
Ikuo
I
Ueta
Kazuya
K
Takahashi
Yoshihiro
Y
Saito
D000438:Alcohols / Q000737:chemistry / Q000302:isolation & purification; D000473:Alkanes / Q000737:chemistry / Q000302:isolation & purification; D002849:Chromatography, Gas / Q000295:instrumentation*; D055549:Volatile Organic Compounds / Q000737:chemistry / Q000302:isolation & purification
D000438:Alcohols; D000473:Alkanes; D055549:Volatile Organic Compounds