Summary of reversed phases for SPE

Code	Matrix	Particle size	Pore size	Specification
HR-X	PS/DVB	85 µm	55 - 60 Å	spherical particles
EASY	PS/DVB	80 µm	50 Å	polar, bifunctional modification
HR-P	PS/DVB	50 - 100 µm
PS-RP	PS/DVB	100 µm	100 Å	for removal of organic components from water
C18 ec	silica	45 µm	60 Å	octadecyl modification, endcapped
C18 ec f	silica	100 µm	60 Å	as above, fast flow
C18	silica	45 µm	60 Å	octadecyl modification, not endcapped
C18 f	silica	100 µm	60 Å	as above, fast flow
C18 PAH	silica	45 µm	60 Å	special octadecyl phase, for enrichment of PAHs from water
C18 Hydra	silica	45 µm	60 Å	octadecyl modification, not endcapped, for polar analytes
C8	silica	45 µm	60 Å	octyl modification
C4	silica	45 µm	60 Å	butyl modification
C2	silica	45 µm	60 Å	dimethyl modification
C6H11 ec	silica	45 µm	60 Å	cyclohexyl modification, endcapped
C6H5	silica	45 µm	60 Å	phenyl modification