Application: This column has intermediate polarity due to the higher (20%) phenyl content, producing a different elution order of polar compounds for confirmational information. It is often used for analyses of aromatic analytes. USP Code:?This column meets USP G32 requirements. Phase:?Bonded; poly(20% diphenyl/80% dimethyl siloxane) Temp. Limits:?-25 °C to 300 °C (isothermal or programmed) SUPELCO SPB-20气相色谱柱 毛细管柱订货信息: