TSKgel ODS-120A columns use a 150Å pore size silica base support. The silica's exclusion limit of 10,000 Da makes them a good choice for the reversed phase chromatography of peptides, small proteins, and environmental samples such as poly-aromatic hydrocarbons.
The "A" signifies that the material is not endcapped. For charged samples, the endcapped TSKgel ODS-120T column is a more suitable alternative.
Bonded phase pore size is indicated by the number in the product description, in this case TSKgel ODS-120A has 120Å nominal pore size.
Structure:
Product Attributes:
Pore size (silica): 150Å
Exclusion Limit: 10,000 Da
Endcapped: no
Particle size (mean): 5 µm and 10 µm
pH stability: 2.0 - 7.5
Functional group: C18 (polymeric bonding chemistry)
% carbon 20%