Fraction collectors are a special class of J-KEM Robotics. While they’re designed for the specific task of collecting fluid samples, they still have all of J-KEM’s technology built into their hardware and software. Custom fraction collectors can sample multiple reactions, combine or subsample collected samples (for example, collected the main fraction and then place an aliquot of the sample into a GC vial). They can also take fractions based on time, external triggers, or sensor readings like pH, pressure, or other analog outputs.