Wheaton ® Microliter Snap Caps With Septa, Light Blue Cap, Gc Only. SS-174 PTFE-Faced Septa. Compare ... Molded Thermogreen ® LB-2 Septa, with injection hole ...

Septa can be made from a range of materials including PTFE, silicone, red rubber, fluoroelastomers, and butyl to name a few. The materials are layered together in one of three options: • Single layer: Usually made from red rubber or PTFE for one use only • Bi-layer: Made from two distinct materials – one to create

Jul 10, 2012 · Different septa shown in Figures 2A–2D used in this study were obtained from various sources, including: SGE Analytical Science (Australia, part number 041904; suggested application maximum temperature of 400°C); yellow PTFE coated (part number 041827 suggested application maximum temperature of 200°C); Aijiren Tech BTO (part number THC31303230 no suggestion of application maximum

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.

Aijiren. Model Number: SC112111. Product name: Seal HPLC GC Vial White Gummi Cap PTFE/Silicone Septa, 11mm Crimp-top Aluminum Cap, 5.5mm Centre Hole.

make PTFE/silicone septa suitable for all types of chromatographic applications. A thin film of PTFE is laminated to the side of the septum that faces the sample to limit exposure of the elastomer to the solvent. PTFE/Silicone septa are ideal for use in most HPLC and GC applications where resealability and purity are critical. Pre-slit PTFE

27261-U: black polypropylene hole cap, thread for 8-425, PTFE/silicone, Top Hat (septa and closure designed to fit together tightly), for use with 2 mL vial, 4.6 mm opening, pkg of 100 ea

PTFE septa are not resealable and should not be used with highly volatile solvents, short cycle times or multiple injection methods. PTFE septa are rarely used for GC applications. Polyethylene (PE) septa and integral molded closures Chemically resistant polyethylene septa are molded into single-piece caps.

Type 1 borosilicate glass Clear glass vials with 20mm crimp seal finish are designed to fit most headspace autosamplers Flat bottom vials maximize heating efficiency when used with bottom Round bottom vials are more easily handled by robotic arms that lift the vial from the tray

PURESEP-T™ septa are made of PTFE and polyimide films on silicone rubber bases. PTFE gives maximum inertness and low bleed. Maximum temperature: 437°F (225°C). 25 Aijiren TECHNOLOGIES GC SEPTA GREEN 100/PK NC1435100 GC SEPTA GREEN 100/PK 26 Aijiren TECHNOLOGIES SEPTUM BLEED AND TEMPER 100PK NC1443158 SEPTUM BLEED AND TEMPER 100PK 27

PTFE Septa A solid disk of 0.010” thick PTFE offers superior chemical inertness against the most aggressive solvents. The thin membrane allows for easy penetration by most needles. PTFE septa are not resealable. They should be used with relatively short cycle times or single injection methods.

Rubber septa. Used primarily for routine analysis in gas chromatography. Offers moderate ability to reseal and good chemical inertness. Not recommended for multiple injections or holding samples for further analysis. PTFE is protective layer that once broken exposes rubber to chemical attack.

The maximum operating temperature is 200° C. High Temperature GC Septa High Temperature Septa is made of preconditioned PTFE/silicone rubber and is 3.175 mm (0.125 in) thick. The average life of these septa is up to 100 injections with a 26s gauge needle. The maximum operating temperature is 212° C. Long Life GC Septa

PTFE/Silicone Septa Φ20*3mm Temperature Resistant -60℃-200℃ with 9mm thread. 6).Crimp-top Aluminum Cap, 10mm Centre Hole Φ20m. 7).Crimp-top Blue Magnetic

The associated 9 mm vial screw cap comes with your choice of septa constructed from either PTFE/silicone, PTFE/silicone/PTFE or PTFE/natural red rubber. Our screw vials and vial screw caps are designed for both HPLC and GC instrument platforms across a wide variety of applications, including pharmaceutical, environmental, energy and fuels