HELIX Heritage C18 HPLC Columns
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USP L1 designation/classification column. Octadecyl silane chemically bonded to porous silica 3, 5 and 10 um particle size. Specifically designed for USP methods. Inexpensive alternative to C18 columns. Reversed-phase column for separation of hydrophobic compounds. Designed to separate compounds based on hydrophobicity.