Advancements in PTFE Septa Technology for Improved Seal Integrity

Our closures with septa are made in a wide variety of sizes and materials ensuring you have the right combination for your sample type and analysis temperature. 9 mm Pre-Assembled Blue Polypropylene Screw Cap with Pre-Slit PTFE/Silicone Septa, 100/pk | PerkinElmer

The vials were purchased precleaned, with the manufacturer's or distributor's choice of PTFE faced silicone septa. All 216 vials from each manufacturer (864 vials, total) were visually inspected and then vacuum-tested for seal integrity by evacuating the vials, glass lips down against a polished aluminum plate.

Aijiren's headspace vial caps are engineered to prevent sample contamination while providing consistent, secure seals. Headspace vial caps are available in a variety of materials including aluminum, bimetal, and steel; headspace vial cap septa are available in PTFE/silicone, molded PTFE/butyl, and high-temperature varieties.

2-056 PTFE/Natural Red Rubber PTFE Natural Red 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. Natural rubber septa are offered assembled into aluminum crimp seals. PTFE/Synthetic Red Rubber Septa: (PTFE/RR)

PTFE/silicone septa are always best. What force is required to penetrate the septum? Generally, silicone septa are more easily pierced than red rubber or butyl septa. For thicker, hard-to-pierce septa, a small gauge (23 gauge) needle may be required, or a stronger S-needle can be used. Preslit septa are the best option for

Chemglass. Replacement septa for use with MW-102 open-top screw caps on Minum-Ware® glassware components. Septa are made of silicone rubber with one side having a RED PTFE face, while the opposite side has an ultrathin covering of polypropylene to prevent needle coring when penetrating septa. Compare this item.

Pre-slit septa are highly recommended for improving injection to injection reproducibility with autosamplers withdrawing greater than 50µL of sample from a 2mL vial, due to possible cavitation (vacuum). Pre-slit PTFE / Silicone Septum. In order to pierce easily. Diameter: 8mm to 22mm. Thickness: 1mm, 1.5mm, 3mm.

Crimp seals (magnetic) with PTFE/silicone septa, pkg/100 SU860053 gold seal (magnetic, with 8 mm center hole), PTFE/silicone (blue PTFE/white silicone), diam. × thickness 20 mm × 1.5 mm, open center

Autosampler vial septa, 13 mm for use with 13-425 threaded caps or 13 mm snap/crimp caps.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

Technical Support Customer Service. Replace your worn out septa with Thermo Scientific™ SureSTART™ 20 mm Septa (Level 2). Select Level 2 products for high throughput applications, when robustness and reproducibility are key. Choose from various pack sizes of silicone/PTFE or butyl/PTFE septa manufactured with shore values of 45 and 50

DWK Life Sciences (Wheaton) 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.

Jun 1, 2021 · The tribo-test results confirmed that the groove texture processed by laser surface texture technology greatly improved the load-bearing capacity and anti-wear life of the PTFE coatings.

Crimp top vial convenience kit with PTFE/red rubber septa. Compare. Product No. Description. Pricing. 27239. volume 2 mL, clear glass vial, vial O.D. × H × I.D. 12 mm × 32 mm × 6 mm, silver aluminum seal, PTFE/red rubber aluminum seal, pkg of 100 ea.

AR0-52A0-13 Verex Seal, 20mm Dia., PTFE/Gray Butyl Rubber, Pressure Release, silver 1000/Pk AR0-52C5-13 Verex Seal, 20mm Dia., PTFE/Gray Butyl Rubber, magnetic cap 1000/Pk Ivory PTFE/Red Rubber Septa: PTFE/Red Rubber Septa offer good solvent resistance, good resealing characteristics and resistant to coring.

Septa selection guide Overview Diferent septa material for LC and GC applications There are many diferent types of materials used to produce the septa found in LC and GC vial caps. This document will provide you with the technical guidance you need in order to make the right selection. Choosing the right septa