Chromatography sample preparation is a necessary step for chromatography analysis. Solid Phase Extraction (SPE) is one of the most used sample preparation techniques in laboratories throughout the world. SPE is safer, less time consuming, and faster than liquid-liquid extraction. Utilizing mechanisms including normal phase, reversed phase, ion-exchange, and affinity chromatography and can be combined for mixed-mode chromatography applications. Cole-Parmer TELOS products are ideal for these techniques and support pharmaceutical, environmental, agrochemical, food, and clinical applications. Select from Cole-Parmer TELOS sample preparation solid-phase extraction (SPE) columns and 96-well plates, and SLE plates.