This paper presents the Perfinity Workstation, a fully-integrated online protein sample preparation workstation, combining the selectivity of immunoassay approaches with the resolution of HPLC. It utilizes multiple proteomic approaches to rapidly and reproducibly perform affinity selection, buffer exchange, trypsin digestion, desalting of the sample and reverse phase LC analysis. All of these processes enable the generation of purified peptides ready for LC-MS analysis in about 10 minutes, and result in peptide maps of exceptional reproducibility (<10% CVs).