Ultimate Xb-c18 is one of the most common C18 analytical columns in the market. It can replace waters symmetry C18, Agilent Zorbax XdB C18, phenomenex Luna C18, supelcosil lc-18-db, YMC ods-am, alltima C18, GL inertsil ODS-2. Xb-c18 column adopts new bonding and double tail sealing technology to provide analysts with near perfect peak shape. The column has a wide pH range, and has a very good separation effect for strong basic compounds, especially for traditional Chinese medicine. 1. Sharp peak shape and ultra-high column efficiency; 2. High peak capacity, suitable for traditional Chinese medicine analysis; 3. Excellent batch reproducibility and stability; 4. Wide pH tolerance range: 1.5-10; 5. Widely used in chemical medicine, traditional Chinese medicine, environment and food safety detection; 6. There are three pore sizes of 120 Å 200 Å and 300 Å for selection.