Fig. 9.
Comparison of Fused-Core and totally porous particles. Columns: 4.6 mm × 150 mm; instrument: Agilent 1100 with autosampler; 5 μm Halo Fused-Core with 0.6 μm shell and 5 μm totally porous particles. Conditions for 1-Cl-4-nitrobenzene as in Fig. 2; capacity factor k = 2.7 for Fused-Core, k = 4.3 for totally porous. Conditions for verapamil – Mobile phase: 35% acetonitrile/65% aqueous 0.1% trifluoroacetic acid; temperature: 40 °C; injection: 0.5 μL; Fused-Core k = 2.8; totally porous k = 6.3.