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Welch Materials
Welch Materials HPLC Guard Column Cartridge Ultisil XB-C8, 3 μm, 120Å, 2.1 x 10 mm, 2 pc/PAK
The XB-C8 phase is less retentive than XB-C18 phase, useful for strong hydrophobic compounds that are too strongly retained on C18 phase, and for LC/MS pplications, where long retention is not desired. When separating neutral or other highly retained compounds, XB-C8 can save analytical time. However, when separating polar compounds, XB-C8 column provides different selectivity than does XB-C18 column.Show more
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