WELCHEMAT Ultisil LP-C8 HPLC Column, 200 x 4.6mm, 3.0µm, P/N: 00209-21042
LP is abbreviation for Low pH. LP phases are designed for use at low pH conditions. LP phase consists of two very bulky hydrophobic protective groups to prevent siloxane bond from hydrolysis at low pH condition. So UltisilTM LP column is extremely stable in very low pH mobile phase and at high temperature, even at the lowest pH of 1.0, making it the most stable C18 for low pH application in the market. Because it is not endcapped and has more surface silanols, LP phase has more retention for some early eluted polar compounds, and provides different selectivities than does traditional C18. UltisilTM LP-C18 is the most polar C18 among all the C18 products of Welch.
•Not endcapped, prevents siloxane bond from hydrolysis at low pH condition.
•Compatible with 100% water as the mobile phase, more polar than “AQ”, better peak shape and resolution
•Best peak shape for polar compounds
•Exceptional lifetime at low pH (0.5-8.0) and high temperature
•300 Å LP-C18 is exclusively used for separation of polypeptide and protein
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