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. 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. PCOC Septum nut, 7890. One of the most basic tasks in GC, installing the column, can be challenging. The GC oven is a dark, small space, and column installation uses tiny parts that need to be assembled with precision. Installation of the column into both the inlet and detector must be done properly to get accurate and reproducible results. To facilitate good column installation, Agilent offers a selection of capillary column nuts for GC fittings. Our latest innovation, the Self Tightening column nut, prevents leaking and the need to retighten when using graphite/polyimide blend ferrules, which are recommended for use with oxygen sensitive detectors such as ECD or mass spectrometry.
This product is only available to U.S. Domestic Customers.
For research use only, not to be used in diagnostic procedures.