The MMS 300 is a chemically-regenerated suppressor and therefore has very low noise and quick startup time. With the new Displacement Chemical Regeneration (DCR) Kit, this classic suppressor provides easier operation. MMS Suppressor advantages include: High-capacity and solvent-compatible design capable of handling samples with complex matrices Very low signal-to-noise and excellent baseline stability Low method detection limits Fast start-up and equilibration Easy to use, maintenance-free operation with the DCR kit The MMS 300 has high capacity and can be used with all Dionex ion-exchange columns. For lowest noise and longest life, the MMS is recommended for anion and cation separations using eluents containing HPLC solvents. The MMS 300 is available in both 2- and 4 mm formats; 3 mm columns should be used with 2 mm suppressors. The MMS produces the lowest noise because it uses non-electrolytic chemical regeneration. Low noise levels translate into lower method detection limits.