Omegawax® Capillary GC Column

L × I.D. 30 m × 0.25 mm, df 0.25 μm

Pricing and availability is not currently available.

Quality Level


fused silica


meets requirements for USP G16


50-280 °C temperature (isothermal or programmed)

Beta value



0.25 μm


gas chromatography (GC): suitable

L × I.D.

30 m × 0.25 mm

matrix active group

Bonded; poly(ethylene glycol) phase

Featured Industry

Food and Beverages

column type

capillary polar

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General description

Application: This column allows highly reproducible analyses of fatty acid methyl esters (FAMEs), specifically the omega 3 and omega 6 fatty acids. It is tested to ensure reproducible FAME equivalent chain length (ECL) values and resolution of key components.
USP Code: This column meets USP G16 requirements.
  • Bonded
  • Poly(ethylene glycol)
Temp. Limits:
  • 50 °C to 280 °C (isothermal or programmed)


Capillary GC column with its coated with Omegawax 250 was used for the absorption of analytes from the aqueous sample in-tube solid-phase microextraction coupled with high-performance liquid chromatography. It may also be used in blood lipid fractions by GC-MS analysis.

Legal Information

Omegawax is a registered trademark of Sigma-Aldrich Co. LLC
Automated in-tube solid-phase microextraction coupled to high-performance liquid chromatography.
Ralf E and Pawliszyn J.
Analytical Chemistry, 69 (16), 3140-3147 (1997)
R O Adlof et al.
Lipids, 35(2), 131-135 (2000-04-11)
This paper deals with the reanalysis of serum lipids from previous studies in which deuterated fatty acids were administered to a single person. Samples were reanalyzed to determine if the deuterated fatty acids were converted to deuterium-labeled conjugated linoleic acid...
H Kataoka et al.
Analytical chemistry, 71(19), 4237-4244 (1999-10-12)
The technique of automated in-tube solid-phase microextraction (SPME) coupled with liquid chromatography/electrospray ionization mass spectrometry (LC/ESI-MS) was evaluated for the determination of beta-blockers in urine and serum samples. In-tube SPME is an extraction technique for organic compounds in aqueous samples...
M Vecka et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 770(1-2), 91-99 (2002-05-16)
Four capillary columns (A: CP-WAX 52 CB 25 m x 0.25 mm; B: CP WAX 52 CB 30 m x 0.25 mm; C: CP-WAX 58 CB 25 m x 0.25 mm, Chrompack; D: OMEGAWAX 320 30 m x 0.32 mm...
Susana P Alves et al.
Journal of chromatography. A, 1216(26), 5130-5139 (2009-05-19)
Two gas-liquid chromatograph capillary columns for the analysis of fatty acids (FA) in ruminant fat are compared. Those columns are the CP-Sil 88 of 100 m long with a highly polar stationary phase and the Omegawax 250 of 30 m...
This technical article will discuss GC Analysis of a 37-Component FAME Mix on Omegawax.
Read More
Compared to existing ‘wax’ columns, the SLB-IL60 column offers unique selectivity, some cis/trans resolution, and faster elution for the analysis of omega 3 and omega 6 fatty acid methyl esters.
Read More
Determination of the fatty acid composition of nuts using established methods for GC analysis on capillary columns of 3 selectivities: Omegawax, SP-2560, and ionic liquid based SLB-IL111.
Read More
nalysis of the omega 3 fatty acid profiles from fish oil capsules and salmon, highlighted through the use of 2 GC columns of different selectivity for analysts who wish to perform confirmatory analysis.
Read More
-Cymene; 2,5-Dimethylpyrrole; Acetoin, ≥96%, FCC, FG; 2,5-Dimethylpyrazine; 2,6-Dimethylpyrazine; 2-Ethylpyrazine, ≥98%, FG; 2,3-Dimethylpyrazine; 4-Heptanone; 3-Ethylpyridine; 2,3,5-Trimethylpyrazine; Furfural; Pyrrole; Furfuryl acetate; Linalool; Linalyl acetate; 5-Methylfurfural; γ-Butyrolactone; 2-Acetyl-1-methylpyrrole; Furfuryl alcohol; 2-Acetylpyrrole; Pyrrole-2-carboxaldehyde
Read More

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