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Chromatographia

, Volume 30, Issue 5–6, pp 328–332 | Cite as

Reproducibility of retention indices measurement of alkylbenzenes on crosslinked methyl silicone phase fused silica capillaries

  • E. Matisová
  • P. Kuráň
Originals

Summary

Reproducibility of the Kovats retention indices of alkylbenzenes was studied on conventional “PONA” fused-silica capillary columns coated with crosslinked dimethyl silicone phase, with a film thickness of 0.5 μm. The data were compared with those obtained on conventional OV-101 columns. The tested PONA columns showed reproducible chromatographic properties, capacity ratios and high efficiencies. Having a standard deviation of s=0.03 i.u. of the retention indices on a single column, the column-to-columns differences were found to be up to 0.3 i.u. Higher indices were determined for crosslinked columns, the difference being in most cases about one i.u.

Key Words

Gas chromatography Retention index reproducibility Alkylbenzenes HP PONA columns OV-101 glass capillary columns 

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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1990

Authors and Affiliations

  • E. Matisová
    • 1
  • P. Kuráň
    • 1
  1. 1.Department of Analytical Chemistry, Faculty of Chemical TechnologySlovak Technical UniversityBratislavaCzechoslovakia

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