Product name: GC Guard columns category: GC Low Bleed & MS Capillary Columns Non PolarMethyl deactivated, suitable for pentane/hexane and other non polar solvents.Medium Polar (Iintermediate)Phenyl-methyl deactivated, USP (467) suitable for methylene chloride, hexane, toluene, and a wide range of similar solvents.PolarPolyethylene glycol deactivated, suitable for methanol, water and a wide range of similar polar … تابع قراءة GC Guard Column

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