Nacalai Tesque COSMOCORE UHPLC Columns

COSMOCORE (2.6 μm Core Shell Particle)

Core-shell particles consist of a nonporous core inside a porous shell. By using these core-shell particles, one can achieve sharper peaks compared to fully porous silica gel particles of the same diameter.

Specifications:

Column	2.6C18	2.6Cholester	2.6PBr
USP Code	L101
Silica Gel	Core-shell type silica
Particle Size	2.6 µm
Average pore size	1.6 µm
Pore Size	approx. 90 Å
Specific Surface Area	approx. 150 m2/g
Stationary Phase
	Octadecyl group	Cholesteryl Group	Pentabromobenzyl group
Main Interaction	Hydrophobic interaction	Hydrophobic interaction Molecular shape selectivity	Hydrophobic interaction Dispersion force
End Capping Treatment	Yes
Carbon Content	approx. 7%	-	-
pH Range	1.5-10	2-7.5
Maximum puressure	60MPa