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. Author manuscript; available in PMC: 2013 Oct 5.
Published in final edited form as: J Chromatogr A. 2012 Aug 17;1258:76–83. doi: 10.1016/j.chroma.2012.08.036

Table 1.

Characteristics of particles.

Particle type Porous shell thickness, μm Solid core/particle dia. ratio BET surface area, m2/g Ave. pore dia., Åa % Particle porosity Plate numberb Pressure, barb
2.2 μm Fused-core 0.3 0.73 130 90 62 38,700 530
2.7 μm Fused-core 0.5 0.63 135 90 75 38,300 284
4 μm Fused-core 0.6 0.65 98 90 66 28,900 97
4 μm Fused-core 0.2 0.90 30 90 27 27,500 95
5 μm Fused-core 0.6 0.71 90 90 56 28,300 78
3 μm Totally porous N/A N/A 300 100 100 24,200 309
5 μm Totally porous A N/A N/A 300 120 100 14,600 100
5 μm Totally porous B N/A N/A 170 120 100 14,400 63
5 μm Totally porous C N/A N/A 450 100 100 15,300 120
a

Reported by manufacturer.

b

Column plate number and back pressure for 4.6 mm × 150 mm columns measured with 1-CI-4-nitrobenzene at the plate height minimum with 50% acetonitrile/50% water at 30 °C using an Agilent 1100 instrument or an Agilent 1200 SL.