Graphite ferrules can withstand temperatures as high as 450 deg C making them a top choice for high temperature applications. Their inherent softness and thermal expansion properties help to prevent column damage due to overtightening while maintaining a leak-free seal throughout temperature cycling. Agilent offers a comprehensive selection of 100% graphite ferrules made for use with a variety of GC columns. These ferrules are recommended for making leak-free connections between the GC column and injector port in high temperature applications. Deactivated tubing can be used as guard columns or transfer lines. Our standard deactivation process is a phenyl methyl deactivation - the preferred choice for most applications due to its inertness and robustness. Undeactivated tubing, or bare fused silica, is commonly used for capillary electrophoresis. It can also be used for transfer lines and other applications where inertness is not critical. Retention gaps are used to improve peak shapes for some types of samples, columns, and GC conditions. They are available in several polarities. graphite-vespel ferrules are composed of 85% Vespel polyimide and 15% graphite. These ferrules are ideal for MS applications as their nonporous material prohibits oxygen contamination, and they can withstand temperatures as high as 350 deg C. They are also widely used in GC inlets and detectors as they can be reused and reinstalled due their resistance to deformation. Agilent offers a comprehensive selection of graphite-vespel ferrules for gas chromatography and mass spectrometry. Our diverse portfolio ensures you will find the correct sized ferrule ID for your GC. Agilent now coats each premium 11-mm inlet septa with plasma to eliminate sticking in the GC inlet. with our premium non-stick septa, you'll never have to scrape bits of septum out of your inlet. Our premium septa also have a recess on the injection side that guides the syringe needle to the same point with every injection. Inlet septa are used to maintain a leak-free seal under the septum nut in the GC inlet, even after many repeated injections. The dimple in the middle of the septum guides the syringe needle through the inlet into the inlet liner to minimize damage to the needle and to ensure injection consistency. Bleed temperature optimized (BTO) septa are specifically designed for operation at temperatures up to 400°C without bleeding into the sample flow path. They ideal for use with low-bleed, mass-spec capillary columns and are preconditioned and ready to use. Cool on-column injection is superior in many ways to other sample introduction techniques by offering high precision injection to eliminate sample discrimination and sample alteration. Agilent provides all the necessary supplies to set-up and maintain your COC injection port.
This product is only available to U.S. Domestic Customers.
For research use only, not to be used in diagnostic procedures.