The Ghost Trap DS cartridge has an activated charcoal packing to trap impurities and contaminants from HPLC system parts and solvents, and can significantly reduce the appearance of ghost peaks. It is most effective when installed after the mixer, and lasts for 500 or more gradient runs. Recommended for 2.1mm ID and 3.0mm ID columns. Working pH 2-12, maximum pressure 35 MPa/350 bar/5100 psi. Dead volume of approx. 150 uL. Includes cartridge holder, requires PEEK or stainless steel fittings for 1/16" tubing. Not recommended when using ion pairing reagents or when a mass spectrometer is used as the detector.