Solid Phase Extraction (SPE) is a sample preparation technique used in analytical chemistry to isolate and concentrate analytes from a liquid sample. In the SPE market, companies manufacture and supply SPE cartridges, disks, plates, and other consumables, as well as instruments and systems used for sample extraction. These products are utilized in various industries including pharmaceuticals, environmental testing, food and beverage analysis, and forensic science to improve the sensitivity, accuracy, and efficiency of analytical processes.