Topsil Columns

Topsil is Welch’s Next Generation Silica, with larger pore size and greater surface area, distinguishing Topsil stationary phases from those in our Ultisil Series.

High purity silica (99.99%) with 150Å pore size and 250m2/g surface area.
Good for small molecules and peptides.
Lower back pressure than Ultisil.

P/N: 00460-01042

$470.00 USD

Topsil Phenyl-Hexyl offers distinct selectivity compared to other phenyl columns from Welch Materials. It offers exceptional selectivity for compounds containing phenyl groups and short-chain alkyl...

P/N: 00460-01043

$470.00 USD

P/N: 00440-01041

$400.00 USD

Topsil CN offers distinct selectivity compared to other cyano columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00440-01043

$420.00 USD

Topsil CN offers distinct selectivity compared to other cyano columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00430-02041

$450.00 USD

Topsil NH2 offers distinct selectivity compared to other amino columns from Welch Materials. It is suitable for monosaccharide separation under reversed-phase conditions and polar compound separati...

P/N: 00430-02043

$470.00 USD

P/N: 00430-01041

$400.00 USD

P/N: 00430-01043

$420.00 USD

P/N: 00430-01035

$430.00 USD

P/N: 00450-01014

$460.00 USD

Topsil Silica is suitable for the separation of highly polar compounds and lipophilic compounds, offering distinct selectivity compared to other silica columns from Welch Materials. With lower colu...

P/N: 00450-01041

$400.00 USD

P/N: 00450-01043

$420.00 USD