In this study, we studied the chromatographic performance of this newly developed wide pore superficially porous particles (SPPs) with 3.5 μm particle size and 450 Å pore size, for the separation of proteins and Immunoglobulin G antibodies. We studied the selectivity of different phases (C4, SB-C18 and Diphenyl), the effect of temperature, column carryover and column chemical lifetime. We also compared our SPPs with other wide pore SPPs in similar particle sizes and sub 2 µ wide pore totally porous particles by van Deemter studies and gradient separations of proteins and immunoglobulin G antibodies. The results showed that the SPPs containing larger pore size gave better chromatographic performance.
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