Silicone septum for scientific use

include PTFE, silicone, natural red rubber, butyl rubber, Viton, polypropylene and polyethylene. PTFE is often laminated onto the sample facing side of a resealable septum to improve solvent exposure characteristics. Laminated septa will generally exhibit greater chemical resistance until the PTFE layer is punctured.

J.G. Finneran. 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.

labForce® (powered by Thomas Scientific) High-quality borosilicate glass and rigid, autoclavable cap Standard open top, flat silicone/ PTFE septum design 40 mL capacity Available in clear or amber Vials are available assembled only or pre-cleaned to EPA protocol B. Independent laboratory certified version is also.

Thermo Scientific Nalgene. . Radiation stabilized 48 mm QA PP closure features three ports and a removable silicone liner. Closure fits all Biotainer products with a 48 mm QA neck. Closure can be used for filling or venting operations. Ports have tabulations on inside and outside of closure for attachment of tubing.

Thermo Scientific™ Septa for 8-425 Screw Thread Caps are constructed of PTFE, PTFE/rubber, or PTFE/silicone to suit a variety of HPLC, GC and IC applications. Choose from Thermo Scientific™, Thermo Scientific™ National™, and Thermo Scientific™ Chromacol™ brands. Limited warranty period: Subject to all warranty requirements and

The septum you choose for your autosampler vial can impact sample evaporation, sample security, needle bending and blockages, and instrument down time. Don’t let the complexities of septa selection slow you down. Use the simple online Thermo Scientific SureSTART Selection Guide to find the right septa and vial for your analysis.

The Black Rubber septum is an economical choice for applications where reduced levels of vapor penetration are desired. Unassembled convenience kits National and Chromacol Headspace Unassembled Convenience Kits save time during sample preparation and include matched quantities of vials and silver aluminum seals with prefitted septa for added

Description. Thermo Scientific™ Septa for 8-425 Screw Thread Caps are constructed of PTFE, PTFE/rubber, or PTFE/silicone to suit a variety of HPLC, GC and IC applications. Choose from Thermo Scientific™, Thermo Scientific™ National™, and Thermo Scientific™ Chromacol™ brands. PTFE Disk septa are chemically inert.

Septa. Septa are available in a variety of materials and thicknesses. PTFE Natural Rubber are moderately priced seals for GC and HPLC with good chemical properties. They are ideal for multiple injections due to high resealability, but not as easy to penetrate as PTFE/RR. PTFE/High Performance Rubber is a highly pure synthetic red rubber septum

Each lot of certified kits is tested by HPLC/UV and GC/MS against 15 critical parameters. Certificate of Conformance included in every pack. Kits are delivered shrink-wrapped to ensure product cleanliness. Superior quality 1st hydrolytic class glass (Type 1) in clear and amber. Fixed insert or conical base vials for limited volume sampling.

separately (842-22125) for use with this septum. Processed to meet EPA Performance Based Specifications for Volatile Organic Analysis. Features: • 0.125 in. thick or 0.060 in. thin PTFE-lined silicone septum, 24 mm diameter • For use with Thermo Scientific VOA vials and bottles with 24-414 open-top cap

Use Thermo Scientific™ SureSTART™ 11 mm Crimp Caps with crimp vials that have an 11 mm opening, including our SureSTART 2 mL Glass Crimp Vials (Level 2). Select Level 2 products for high-throughput applications, when robustness and reproducibility are key. Choose from aluminum caps with all-purpose silicone/PTFE septa of various hardness

The septum is provided with a thin 0.005” PTFE layer laminated to highly pure silicone, and slit through the center for easier needle penetration and to release the vacuum that forms when a large volume of sample is withdrawn from a vial.

PerkinElmer. The Advanced Green septum was created to combine significantlylonger injection life, low bleed and low injection port adhesion.The result is a general use green septum you can use for all yourcritical analyses. Advance Green septa are packaged in a plasticdial pack of 10 septa. Compare this item.

Wheaton headspace vials accept 20 mm aluminum seals Rounded shoulders and bottoms, allowing for even heating and safer operation at higher pressures Manufactured from Type I borosilicate glass Top provides a tighter seal with your septa O.D. x Height: 23 x 75 mm Capacity: 20 mL. Related Products: 20 Ml Glass Vials. Compare this item.