Product Category
PTFE/silicone septa for chromatography tools vial cap compatibility chart
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Vials, open-top screw cap, 2 mL large opening with closures, unassembled convenience packs volume 2 mL, clear glass vial, thread for 10-425, black polypropylene cap, PTFE/silicone septa, pkg of × 100 ea; find Supelco-29118U MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich
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from a variety of options. Separate vials and caps can readily be purchased or select one of our kits for added convenience. Cap and Septa Compatibility Aluminum/Silicone PTFE/Silicone PTFE/Red Rubber PTFE/Butyl (Red or Gray) Red or Gray Butyl Temperature Range Up to 220 °C Up to 210 °C Up to 160 °C Up to 130 °C Up to 130 °C
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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.
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common use headspace gas chromatography with PTFE septa price. Common use crimp top vials for HPLC- Aijiren Crimp Vials. We supply autosampler vials, septa and caps at factory price. 1. 1.5mL 11mm Crimp Ring Vial ND11 can be used for GC and HPLC. 2. Made from advanced technology and excellent raw materials. 3.
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Ideal for use with reactive and corrosive chemicals. The melting point of PTFE 1 is 600°K (327°C / 620°F) Low temperature: maintains high strength, toughness and self-lubrication as low as 5°K (-268°C /-450°F) and good flexibility at 194°K (-79°C / -110°F) NOT compatible with certain alkali metals and fluorinating agents such as xenon
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Septum Selection Guide Septa for use with general chromatography vials, liquid injection 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.
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Blue Screw Caps, PTFE/silicone/PTFE septa : 100/pk : 5182-0724: Green Screw Caps, PTFE/silicone/PTFE septa : 100/pk : 5182-0725: Red Screw Caps, PTFE/silicone/PTFE septa : 100/pk : : Blue Screw Caps, pre-slit PTFE/silicone septa : 100/pk : 5183-2077: Green Screw Caps, pre-slit PTFE/silicone septa : 100/pk : 5183-2078
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Waters offers a selection of cap, septum, and assembled cap/septum for various vial sizes. The range of septum material is limited to PTFE, silicone / PTFE, and polyethylene septumless caps. Waters offers scientists and lab managers PTFE / Silicone Septum, 100/pk, wat058874 .
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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
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Vial Kit, Crimp Cap, 2 mL Clear, w/ Patch + PTFE/Silicone AR0-9721-13 Vial Kit, Crimp Cap, 2 mL Clear + PTFE/Silicone, preSlit AR0-9727-13 *No write-on patch unless otherwise indicated 12 x 32 mm, 11 mm Crimp-Top Vials and Kits Complete Kits – Crimp-Top Vials and Seals / Closures • Precision formed for autosampler fit
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to vial/cap products inside, dust-free and ready for use Easy Grip Handle Lays flat when not in use Convenience Kit Carrier Box Every kit is designed with a complimentary integrated vial and cap product dispenser. Single Compartment Box Our 100/pks for screw, crimp, and snap vials come in these smaller single-compartment boxes, ready for use.
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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
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PTFE/ High-performance red rubber septa -40 +110 -40 +230 PTFE/Silicone septa: (T/S) -60
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PTFE/Silicone septum is provided with a thin 0.005” PTFE layer laminated to our high purity silicone and slit through the center to provide for easier needle penetration as well as to release the vacuum that forms when a large volume of sample is withdrawn from a vial.
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