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: 00410-01025

$440.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01027

$440.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01028

$440.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01029

$440.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01030

$440.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01031

$450.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01064

$480.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01032

$440.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01033

$450.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01066

$500.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01034

$450.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01067

$550.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01035

$480.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01036

$400.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 11410-01036

$400.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01037

$400.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01038

$400.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01039

$400.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01040

$420.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01041

$400.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01042

$420.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01043

$420.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01044

$450.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.

P/N: 00410-01053

$630.00 USD

Topsil C18 offers distinct selectivity compared to other C18 columns from Welch Materials. With lower column pressure and higher efficiency, it is an economical HPLC column choice.