Ferrules provide secure seals between chromatography columns and injectors and detectors; PEEK and stainless steel are often used in high pressure applications; softer polymers, such as EFTE and polypropylene, are used in low pressure applications.
Ferrules used for chromatography tubing. Cytiva Lifescience™ ETFE Ferrule is made from ethylenetetra fluoroethylene and comes with different outside diameters.