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. Author manuscript; available in PMC: 2008 Dec 15.
Published in final edited form as: J AOAC Int. 2006;89(1):22–34.

Table 2.

Gas chromatography conditions

Column Capillary column, split mode (25 m × 0.32 mm) cross-linked 5% phenyl-methyl silicone or methyl silicone gum
Film thickness 0.17 μm
Detector Hydrogen flame ionization detector (FID)
Temperatures
Column 190°C, hold 2 min; increase 20°/min to 230°C, hold 3 min; increase 40°/min to 255°C, hold 25 min
Injector 250°C
Detector 300°C
Flow rates
Carrier 2 mL/min, split vent ca 30 mL/min, purge vent ca 3 mL/min helium
Makeup 20 mL/min helium
Hydrogen 35 mL/min
Air 280 mL/min
Injection volume 1 μL