产品特点： Polaris C8-A: For all Phasesof Drug Development • Universal stationary phases for maximum flexibility • Ideal for polar acids, polar bases, and non-polar components • High aqueous compatibility Polaris C18-A and C8-A are polar modified phases specially designed for high throughput and LC/MS applications in drug discovery, drug metabolism, and analytical research and development. Based on 200Å ultra-pure silica, these polar modified phases are bonded with a polar group near the silica surface to deactivate residual silanols. The non-polar interaction from the C18 is supplemented by a unique polar modification, offering general polar selectivity and retention for polar compounds in addition to hydrophobic interactions. Polar modification also helps prevent phase collapse under the high aqueous mobile phase conditions that are often required for polar retention. Polaris C8-A的疏水性比Polaris C18要低，适用于分析极性样品。
