Postnova model 7205 FFF eluent UV Disinfection (UVD) module

FFF eluent UV disinfection module

One of the sensitive parameters in Field-Flow Fractionation is the preparation and stabilization of the eluent. As in basically any aqueous media microorganisms will grow during a period of time, which can cause serious problems.

Model 7205 UV Disinfection module is designed to solve that problem by providing eluents for constant sterile conditions. It is a unique automatic and continuously working cleaning device for FFF eluents and preserves the sterile condition of any aqueous solvent.

It is well known that most filtered buffers soon become contaminated by airborne or otherwise introduced microorganisms. Aqueous eluents which often become infected by these bacteria will contaminate the complete solvent lines inside the FFF and the system performance will soon become deteriorated.

Fluid lines, check valves, injection seals, membranes and most importantly light scattering detectors will eventually become fouled and contaminated by the non-sterile fluid. This then invariably leads to a reduced system performance, detector noise and in the worst case system failure which will lead to costly wasted down-time because decontaminating the system with strong solvents is required.

The PN7205 UVD module runs completely automated and does not need any eluent stirring, which can cause extra artifacts and contamination problems.