SPE Cartridge, SepPak Vac C18 1cc, 50 mg, 2000/PK

Silica-based bonded phase with strong hydrophobicity, used to adsorb analytes of even weak hydrophobicity from aqueous solutions, typical applications include drugs and their metabolites in serum, plasma or urine, desalting of peptides, trace organics in environmental water samples, organic acids in beverages, similar in behavior to reversed-phase HPLC columns.