Standard GC phases

• Low polarity phase
• Crossbond, 5% diphenyl 95% dimethyl polysiloxane
• General-purpose columns for the analysis of hydrocarbons, PCBs, pesticides, aromatics, semi-volatile compounds, essential oils, drugs and anesthetics
• Maximum temperature:

-350 °C for df ≤ 0.25 µm,

-320 °C for df ≤ 1 µm,

-300 °C for df > 1 µm

• Equivalent to USP G27 and G36 phases

• Low to medium polar phase
• Crossbond, 13% diphenyl 87% dimethyl polysiloxane
• General purpose columns for halocarbon analysis, suitable column for EPA method 601, 602 and 604
• Maximum temperature:

-340 °C for df ≤ 0.25 µm,

-320 °C for df ≤ 0.50 µm,

-300 °C for df = 1.00 µm

• Phase of low to medium polar action
• Crossbond, 20% diphenyl 80% dimethyl polysiloxane
• General-purpose columns for the analysis of volatile substances and flavor compounds
• Maximum temperature: -340 °C for df ≤ 0.25 µm, -320 °C for df = 0.50 µm, 300 °C for df = 1.00 µm
• Equivalent to USP G28 and G32 stages

• Middle polar phase
• Crossbond, 35% diphenyl 65% dimethyl polysiloxane
• General purpose columns for pesticides, PCBs, phthalate esters and sterols
• Maximum temperature:

-340 °C for df ≤ 0.25 µm,

-320 °C for df = 0.50 µm,

-300 °C for df = 1.00 µm

• Equivalent to USP G28, G32 and G42 phases

• Medium to highly polar phase
• Crossbond, 50% diphenyl 50% dimethyl polysiloxane
• General purpose columns for pesticides, phthalate esters, sterols and steroids
• Maximum temperature: -340 °C for df ≤ 0.25 µm, -320 °C for df = 0.50 µm, -300 °C for df = 1.00 µm
• Equivalent to USP G3 and G17 phases

• Medium to highly polar phase
• Crossbond, trifluoropropyl methyl polysiloxane
• General purpose columns for fluorocarbons, alcohols, ketones
• Maximum temperature: -250 °C for df ≤ 0.50 µm, -220 °C for df ≥ 1.00 µm
• Equivalent to USP G6 phase

• Medium to highly polar phase
• 25% cyanopropyl, 25% phenyl, 50% methyl polysiloxane
• General purpose columns for sterols, FAME and aromatic compounds
• Maximum temperature 260 °C
• Equivalent to USP G7 and G19 stages

• Phase of low to medium polar load
• Crossbond, 6% cyanopropylphenyl, 94% methyl polysiloxane
• General purpose columns for residual solvents, alcohols and volatile organic pollutants
• Maximum temperature 260 °C
• Equivalent to USP G43 phase

• Phase of low to medium polar load
• Crossbond, 6% cyanopropylphenyl, 94% methyl polysiloxane
• General purpose columns for residual solvents, alcohols and volatile organic pollutants
• Maximum temperature 260 °C
• Equivalent to USP G43 phase

• Middle polar phase
• Crossbond, 14% cyanopropylphenyl, 86% methyl polysiloxane
• General purpose columns for pesticides, PCBs, alcohols and residual solvents
• Maximum temperature: -280 °C for df ≤ 0.50 µm, -270 °C for df ≥ 1.00 µm
• Equivalent to USP G46 phase

• Highly polar phase
• Crossbond, polyethylene glycol
• General purpose columns for volatiles, aromas, flavors, fragrances, residual solvents and FAME
• Maximum temperature 250 °C
• Equivalent to USP G14, G15, G16 and G39 phases

• Highly polar phase
• Crossbond, polyethylene glycol
• Highly stable and low leakage, water stable column for volatiles, aromatics, aromas, fragrances, residual solvents and FAME
• Maximum temperature 270 °C
• Equivalent to USP G14, G15, G16 and G39 stages

• Highly polar phase
• Crossbond, acid-modified polyethylene glycol
• Specially designed columns for organic acids and free fatty acids
• Maximum temperature 250 °C
• Equivalent to USP G25 and G35 stages

• Low polar phase
• Crossbond, base modified 5% phenyl, 95% methyl polysiloxane
• Specific column for basic compounds, amines, alkylamines, diethylamines, etc
• Maximum temperature:

-300/320 °C for df ≤ 0.50 mm,

-280/300 °C for df ≥ 1.00 mm

• Highly polar phase
• Crossbond, base modified polyethylene glycol
• Specific column for base compound
• Maximum temperature 230/240 °C

• Highly polar phase
• 50% cyanopropyl, 50% methyl polysiloxane
• General purpose columns for FAME, FAME cis-trans
• Maximum temperature 260 °C
• Equivalent to USP G8 stages

• Highly polar phase
• 100% cyanopropyl polysiloxane
• General purpose columns for FAME cis-trans
• Maximum temperature 250 °C
• Equivalent to USP G5, G8 and G48 stages