6533b870fe1ef96bd12cf9c0
RESEARCH PRODUCT
Gas—liquid chromatographic analyses
Ilpo O.o. KorhonenJuha KnuutinenRisto Jääskeläinensubject
ChromatographyCapillary columnCapillary actionElutionChemistryOrganic ChemistryKovats retention indexGeneral MedicineGas chromatographyBiochemistryGas liquid chromatographicIsothermal processAnalytical Chemistrydescription
Abstract The gas choromatographic retention behaviour of veratrole and all nine chlorinated veratroles was studied on SE-30 and OV-351 capillary columns. Temperature programming from 100°C at 6°C min−1 and isothermal operation at 140, 160, 180 and 200°C were used. The complete separation of a mixture was obtained on SE-30, the isomers being eluted in order of their degree of chlorination. On OV-351, however, the 3,4,5-trichloro and tetrachloro isomers overlap with temperature programming, being separated at 140, 160 and 200°C. Retention indices and increments of retention indices for each position of substitution are examined and the effect of increasing temperature on retention is discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1984-01-01 | Journal of Chromatography A |