Specifications of Purospher®

	Purospher® STAR RP-18 endcapped	Purospher® STAR RP-8 endcapped	Purospher® STAR Si	Purospher® STAR NH₂	Purospher® RP-18 endcapped	Purospher® RP-18	Purospher® RP-18 HC
Particle size µm	2, 3 or 5	3 or 5	5	5	5	5	5
Pore size Å	120	120	120	120	120	90	90
Pore volume mL/g	1.1	1.1	1.1	1.1	1.0	0.95	1.0
Specific surface area m²/g	330	330	330	330	350	500	>470
%C load	17	11,2	-	3,5	18.0	18.5	18.0
Endcapping	hydrophobic	hydrophobic	no endcapping	hydrophobic	hydrophobic	amino endcapping	no endcapping
pH stability	1.5 - 10.5	1.5 - 10.5	-	2 - 7.5	2 - 8	2 - 7.5	2 - 7.5
USP classification	L1	L7	L3	L8	L1	L1	L1
Analytes	neutral, acidic, basic or chelating compounds, pH stability	polar compounds, position isomers	normal phase chromatography	carbohydrates	acids, basic or chelating compounds	strong bases or chelating compounds	explosives