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Resistance to flow and apparent porosity of the original poly(glycidyl methacrylate-co-ethylene dimethacrylate) monolithic column (1), its cysteamine modified counterpart (B), and this columns with attached GNPs (C). Conditions: Pressure drop measured with acetonitrile at a flow rate of 1 μL/min; Porosity measured using unretained marker acetone, mobile phase 75% aqueous acetonitrile, flow rate, 1 μL/min, UV detection at 280 nm.
