The typical gradients used with nanoflow chromatography are 2-3 hours, allowing only 8 complex proteomes. The typical gradients used with nanoflow chromatography are 2-3 hours, allowing only 8 complex proteomessamples to be analyzed in a working day. Increasingly microflow chromatography has been combined with SWATH Acquisition MS to accelerate quantitative proteomics. Very good protein quantitation numbers have been demonstrated with shortened gradients. In this study, we explore whether using a 15 min microflow LC gradientwith SWATH MS, enabling throughput of 40 proteome samples per day, is robust, practical and effective for prostate cancer tissue biomarker discovery (Figure 1).