Merck, 57405, Knitted reactor coil

The Supelco Knitted Reactor Coil is a 5 m length of 0.5 mm internal diameter tubing formed into a compact knitted configuration for reaction processing within a compatible PHRED reactor. Its nominal internal volume is 1.0 mL. In post-column derivatization and other flow-based reaction setups, a defined reaction path provides contact time between eluting analytes and reaction reagents before detection. The internal volume and flow rate determine residence time, while the tubing geometry and system temperature influence mixing and the degree of reaction. The coil is useful for replacing a worn or contaminated reactor pathway without changing the specified volume and geometry of an established analytical method. Confirm compatibility with the reactor mounting arrangement, mobile-phase and derivatization reagents before use. To maintain reproducibility, keep reaction temperature and combined flow rate consistent and minimize dead volume in the connecting fittings. The coil is one flow-path component: pumps, reagent reservoirs, temperature control and detectors are not included. It must not be confused with the alternative knitted reactor coils of different lengths, bore sizes or internal volumes.