Petrocol® DH Octyl Capillary GC Column

L × I.D. 100 m × 0.25 mm, df 0.50 μm


Quality Level


fused silica


ASTM® D6729,D6730,D6773


-60-220 °C temperature (isothermal or programmed)

Beta value



0.50 μm


gas chromatography (GC): suitable

L × I.D.

100 m × 0.25 mm

matrix active group

Bonded; poly(50% n-octyl/50% methyl siloxane) phase

Featured Industry

Chemicals and Industrial Polymers

column type

capillary non-polar

General description

Capillary GC column is also known as open tubular column. The carrier gas flows through the central aperture and is unrestricted throughout the length of the column.
Application: This column, for detailed analyses of petroleum products, is known within the petroleum and chemical industries for its unique selectivity. Baseline separations of benzene/1-methylcyclopentene and toluene/2,3,3-trimethylpentane that are possible with this column are not obtainable with classical poly(dimethyl siloxane) columns.
USP Code: None
  • Bonded
  • Poly(50% n-octyl/50% methyl siloxane)
Temp. Limits:
  • -60 °C to 220 °C (isothermal or programmed)

Legal Information

ASTM is a registered trademark of American Society for Testing and Materials
Petrocol is a registered trademark of Sigma-Aldrich Co. LLC

Certificate of Analysis

Certificate of Origin

A K Punetha et al.
Journal of chromatographic science, 40(7), 377-382 (2002-08-31)
The estimation of olefinic content in conversion processes such as the etherification of olefins in fluid catalytic cracking (FCC) gasoline is essentially required. Gas chromatography (GC) is the well-established method for the quantitative analysis of olefins in etherification processes. The...
Scott RPW.
Introduction to Analytical Gas Chromatography, 101-102 (1997)
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Gas chromatography is a common analytic technique used to separate and analyze volatile compounds in the gas phase. GC is applied in many industries for quality control, and to identify and/or quantify compounds in a mixture.
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