{"id":45274,"date":"2020-10-29T00:00:00","date_gmt":"2020-10-29T00:00:00","guid":{"rendered":"https:\/\/discover.restek.com\/uncategorized\/how-to-choose-a-gc-inlet-liner\/"},"modified":"2026-01-03T19:54:40","modified_gmt":"2026-01-03T19:54:40","slug":"how-to-choose-a-gc-inlet-liner","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/es\/articles\/gnar1991\/how-to-choose-a-gc-inlet-liner","title":{"rendered":"How to Choose a GC Inlet Liner"},"content":{"rendered":"\n

GC inlet liners are available in a multitude of styles. They differ in geometric design, volume and inner diameter, deactivation, and the presence or absence of some type of packing. However, with so many options to choose from, how do you determine which one is best for your analysis?<\/p>\n\n\n\n

Generally, this question can be simplified based on your injection technique. In most cases, a Restek Topaz Precision liner with wool for split injection, or a Topaz single taper liner with wool for splitless injection, will produce excellent results. For direct injections, the placement of the drilled hole is the only decision you need to make, with most applications finding the hole drilled at the top of the liner to be effective. For gaseous samples, an inlet liner with a narrow inner diameter is recommended to ensure a tight sample band. Finally, for PTV injections, a narrow inner diameter liner would also be used, but one that contains baffles or dimples and is compatible with the inlet.<\/p>\n\n\n\n

While these recommendations provide a good starting point, the unique needs of your application may require a specific feature to be successful. Therefore, it\u2019s helpful to learn about the different liner options available to understand how they can affect your analysis.<\/p>\n\n\n\n