TG-1MS GC Column 100mx0.25mmx0.5um. TG-1MS GC Column, Non-polar, 100% dimethyl polysiloxane, Equivalent to USP G2, Dimension: 100mx0.25mmx0.5um, Applications: Hydrocarbons, PCBs, Drugs of abuse, Gasoline range organics (GRO), Refinery gases, Essential oils, Pesticides