Vortex autosampler consists of an integrated autosampling device and multi-stirrer and is designed to increase efficiency, enhance precision and promote operator safety. The temperature controlled, heated (up to 150 C) multi-stirrer assembly features a stainless steel tray, capable of handling both 20 ml and 40 ml vials. Each vial position has its own magnetic stirring mechanism, delivering consistent and reproducible stirring action from vial-to-vial and eliminating variability due to the dissolution process. When coupled with the Triple Detector Array (TDA), the Vortex provides a complete, automated system for macromolecular characterization.