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.
Highlights
- High purity silica (99.99%) with 150Å pore size and 250 m2/g surface area.
- 12% carbon loading for C18 phase
- Good for small molecules and peptides.
- Lower back pressure than Ultisil®.
- Because of large pore and moderate carbon loading, TopsilTM C18 phase can also be used at 100% aqueous condition without phase collapse.
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