This presentation introduces ITSP (Instrument Top Sample Prep) which is a consumable solution for automating solid phase extraction (SPE) sample cleanup directly on the autosampler of analytical instruments like LC-MSMS and GC-MS. ITSP uses patented cartridges containing user-defined SPE media that are transported by the autosampler to facilitate just-in-time filtration and extraction of samples prior to analysis. ITSP provides benefits like improved chromatography, increased throughput, and reduced solvent usage and costs compared to traditional batch sample preparation methods. The system works with various autosamplers and markets including clinical, environmental, food safety, and pharmaceutical applications.