Septa for use with general chromatography vials PTFE/Red Rubber Septa: (PTFE/RR) PTFE/Red Rubber septa are the most popular and economical choice for general gas chromatography applications. These septa are used primarily for routine analysis in gas chromatography with FID, TCD and FPD detectors.
With more than 50 years’ experience in Gas Chromatography (GC), the PerkinElmer® family of Clarus ® GC instruments can be depended upon to meet the most demanding performance and throughput needs for today’s analytical, process monitoring and quality control facilities.
Pre-Assembled Aluminum Crimp Cap with PTFE/Silicone (White) Septa and Star Spring, 1000/pk, 20 mm - B4000022. Gas Chromatography Mass Spectrometry (GC/MS) ...
gauged septa and large volume- or gas injections. Cone tip/PS AS/PS HP (shown) Used in Aijiren autosamplers for optimum performance and reliability by reducing septum coring. Anatomy of a GC ALS Syringe DE.4721759259
PTFE/Synthetic red rubber septa are an economical choice for general GC and HPLC applications. Used primarily for routine analysis in gas chromatography with FID, TCD and FPD detectors or HPLC with UV/Vis or RI detectors, PTFE/Synthetic red rubber septa offer good resealability and excellent chemical inertness before puncture.
A GC septum is located at the top of the injection port and serves two functions: 1) providing a leak-free seal to maintain carrier gas pressure inside the system. 2) handling repeated puncturing by a syringe needle for sample introduction purposes without severe coring or leaking. Temperature-Programming: When performing temperature-programmed
injection methods. PTFE septa are rarely used for GC applications. Polyethylene (PE) Septa and Integral Molded Closures Chemically resistant polyethylene septa are usually molded into single-piece caps. The surface for needle penetration is 0.01" thick, allowing for use with most HPLC autosamplers. Polyethylene septa are not resealable and are
Features. The preferred septum for autosamplers. Pre-pierced for extended life and reduced coring. Ideal for overnight runs. Up to 400 injections per septum. Plasma coating eliminates sticking. Maximum injection port temperature 350 °C. Soft, 45 Durometer, easy on autosampler needles. Blister packaging for cleanliness and convenience.
Catalog number: C4015-10. Related applications: Chromatography. Technical Support Customer Service. For use with 13-425 threaded caps or 13mm Snap/Crimp Caps, Aijiren Tech™ 13mm Septa are available in PTFE/ Red Rubber, PTFE/Silicone or Red PTFE/White Silicone/Red PTFE to suit a variety of applications. Product Overview.
Jul 10, 2012 · Introduction. In past gas chromatographic (GC) analyses, it has been reported that septa of various makes release volatile organic compounds (VOCs) when subjected to high temperatures ().These reports also revealed the frequent presence of contaminants such as finger oils from handling, or organic contaminants picked up during storage of these septa.
Sep 28, 2015 · The septa are formed from 2 layers. The PTFE is on the lower side that faces your sample in the vial and is relatively inert to solvents. The top side is red coloured rubber or a silicone that helps to make the seal with the cap on crimping. In general the Rubber/PTFE septum is fine for general use for 1 or 2 injections within a short space of
The Finneran 24 mm septa is mainly used with screw thread closures for tight sealing of the stored sample. It is mainly used in research laboratories or in chemical industries. This septa is made of sturdy PTFE/silicone material which ensures long lasting usage and durability. Compare this item.
Septa intended for covering of analytical samples are coated by polytetrafluoroethylene (PTFE, Teflon). Teflon coating is applied to reduce negative factors such as: permeation through the septum, absorption of the analytes, and the off-gassing process.
tearing of the GC inlet septa leading to septa siloxane contamination peaks in the chromatogram. Rough edges may be removed by smoothing with a fine sandpaper. Unblocking Syringes All syringes block occasionally, however if regular blockages are encountered it is likely that there is a problem with the syringe maintenance program, needle
Tuf-bond Septa (9711D10 to D45) Thickness: 100 mils Of silicone rubber with PTFE facing 10 mils thick Septa of butyl rubber, silicone rubber or rubber-laminated PTFE are available on special order. Septum diameter indicated in listings. Related Products: Screw Cap With Septum. Compare this item.
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