PTFE Thin, fragile needle? Soft and thin septa required e.g. silicone/ PTFE Blunt, thick needle? Slit/pre- cut liner as penetration aid (HPLC) silicone/ PTFE, slit Critical analysis? Very clean liner required
Chemical compatibility can vary depending on the concentration of the solvent, temperature, molecular weight of the solvent, and other factors. It is always recommended to try a variety of septa to determine the best one for analysis. *PTFE/silicone/ PTFE has the same chemical compatibility of PTFE ONLY UNTIL PUNCTURED.
Formulations offering highly consistent performance, lowest background/blank value, and good chemical compatibility, effective sealing/resealing and low penetration force make PTFE/silicone septa suitable for all types of chromatographic applications.
PE Septumless offers similar benefits to PTFE membranes. PTFE/Silicone is recommended for multiple injections and sample storage, as it has excellent resealing abilities. If vacuum formation in sample vial is a concern, PTFE/Silicone septa are also available with a pre-slit membrane, which can help eliminate coring from bottom draw needles.
Accessory Product Data Sheet Septum Selection Guide 411 Madrid Avenue Torrance, CA 90501 Tel: 310-212-0555 Fax: 310-328-7768 www.phenomenex.com
Silicone rubber septa. High quality, silicone rubber laminated to PTFE. Use when excellent resealing qualities are a must. Septum resists coring and is recommended when multiple injections are required. Preferred septa for use in liquid chromatography applications.
Molded Septa are manufactured from high quality, low bleed material that uses the same exclusive LB-2 rubber formulation chromatographers are accustomed to using. Design. Solid Disc. Type. Septa. For Use With (Equipment) Low Bleed GC-MS Columns. Temperature (Metric) Max. 350°C.
Table 2. Cap and septum chemical compatibility. High performance septa Thin PTFE PTFE/Silicone* PTFE/Silicone/PTFE* PTFE/Red rubber Flouroelastomer Butyl Temperature range 40 °C to 300 °C** Up to 260 °C –40 °C to 200 °C –40 °C to 200 °C –40 °C to 90 °C –40 °C to 260 °C –50 °C to 150 °C Use for multiple injections
Description. Minimize contamination from handling with convenient, pre-assembled Thermo Scientific™ 11 mm Autosampler Vial Crimp Caps, compatible with most HPLC and GC autosamplers. Choose from Thermo Scientific™, National™ or Chromacol™ brands. Aluminum crimp seals with prefitted septa fit all 11 mm crimp top and snap cap vials.
Crimp, PTFE/Silicone/PTFE, silver Seal, 11mm Diameter, Crimp, PTFE/Rubber, silver Seal, 11mm Diameter, Crimp, PTFE/Rubber, silver, Natural Rubber 1000/pk AR0-5710-13 AR0-5780-13 AR0-5760-13 AR0-5740-13 AR0-5740-13-NR Seal, 11mm Diameter, Crimp, PTFE/Rubber, red Seal, 11mm Diameter, Crimp, PTFE/Rubber, blue Seal, 11mm Diameter, Crimp, PTFE
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.
Blue, 12 x 32 mm Screw Neck Cap and Preslit PTFE/Silicone Septum, 100/pk. As a part of Waters’ wide selection of vials, caps, and other sample accessories, this blue polyethylene screw cap is compatible with a range of vials and other products. Screw caps are designed in consideration with other vial parts in order to achieve high-performance
Catalog number: C4015-10. Related applications: Chromatography. Technical Support Customer Service. For use with 13-425 threaded caps or 13mm Snap/Crimp Caps, Thermo Scientific™ 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.
Oct 21, 2022 · Oct. 21st, 2022. The septa and vial caps are essential parts of HPLC vials. The vial cap serves as a barrier, keeping outside contaminants out of the vial and preserving the integrity of the sample. The septa, a seal between the injection needle and the vial composed of silicone, PTFE, or rubber, ensure accurate and exact sample injection.
Wheaton® HDPE Jug with Handles, 2000mL, 38-400 PE Lined Caps, case/40Part #: DWK-W222340. $127.11. Add to Cart. We're currently collecting product reviews for this item. In the meantime, here are some reviews from our past customers sharing their overall shopping experience.
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