Accucore™ XL HPLC columns have been engineered to increase the performance of conventional HPLC separations without modifying the instruments or methods. Accucore XL HPLC columns, based on Core Enhanced Technology™ using 4 µm solid core particles, can allow users of conventional HPLC methods better performance than that of columns packed with 5 µm, 4 µm, or even 3 µm fully porous particles. The columns feature solid core particles, tight control of particle diameter, bonding technology, and automated packing processes.