The Opt-Diss 410 brings dissolution measurement directly to the vessel, eliminating the need for manual or automated sampling along with the associated consumables, labor, and off-line analysis. Choose from our patented ARCH probes, designed specifically for dissolution testing, or the new patent pending Variprobe Adjustable Pathlength Dip Probe. By moving light rather than liquids, the in-situ fiber optic UV system of the Opt-Diss 410 removes the need for filters, tubing, and syringes, saving time, labor, and costs, while enabling near real-time data collection with sample points as frequent as every five seconds.