SIELCTechnologies is an innovative research and development company manufacturing mixed-mode HPLCcolumns. SIELCcolumns are available in many different stationary phases to be used in regular HPLC and ultra-high-performance liquid chromatography (UHPLC), and deliver exceptional selectivity with outstanding lifetime and robustness. Reversed-phase, normal phase, and mixed-mode HPLCcolumns, including Primesep, Obelisc, Sharc, Bist and Newcrom are designed and manufactured end-to-end by SIELCTechnologies in the USA. The column manufacturing process includes multiple Quality Control (QC) tests on different stages of production so the column user is assured of rugged, reproducible performance with long column lifetime.