A U.S. Patent Application for “High Efficiency Continuous Countercurrent Tangential Negative Chromatography” was published by Chromatan on September 12th, 2019. The present invention is a system, module and method for continuous or batch single-pass countercurrent tangential chromatography for bind/elute and negative chromatography applications. The system includes binding, washing, elution (for bind/elute), regeneration, and equilibration single-pass modules. The resin slurry flows in a continuous single pass at steady-state through each module, while corresponding buffers flow countercurrent to the slurry facilitating efficient product and impurity extraction. Learn More