Welch Topsil® series HPLC column is a next-generation column by Welch. This series use different silica and provide different selectivity with larger 150Å pore size and greater surface area.
Welch Topsil® C18 with lower carbon loading (USP L1). Larger pore size extends the application of this C18 phase into amino acids and peptides (as well as small molecules).
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High purity silica (99.99%) with 150Å pore size and 260 m2/g surface area
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Endcapped for excellent peak shape and lifetime
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Good for small molecules and peptides
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Because of large pore and moderate carbon loading, Topsil® C18 phase can also be used as AQ-C18 without phase collapse
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