Product Category
PTFE/silicone septa for chromatography instruments compatibility
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Headspace Silicone Convenience Kit contains everything you need to run Gas Chromatography. Each product is manufactured using strict quality control standards resulting in consistent cap dimensions with septa which may be certified for higher purity grades.
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PTFE/silicone/PTFE – TST1, TST11. A layer of PTFE on each side of medium hardness silicone. Most resistant to coring with above average resealing characteristics. Recommended for most demanding applications such as trace analysis, longer time between injections, or for internal standards.
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PTFE/Silicone is the most versatile septum material offered in various formulations to address specific applications requirements. Extractables from PTFE/Silicone septa are generally at lower levels compared to other resealable materials.
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PTFE face, silicone body, tan PTFE/silicone septa, white silicon nitride septa. material. PTFE face, silicone body, tan PTFE/silicone septum. material. PTFE face, PTFE septum face (PTFE 0.010" thick), PTFE/silicone , silicone body. material. PTFE face, silicone body, transparent PTFE/silicone
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9 mm Blue Screw Cap PTFE/Silicone Septa 100 N9306202 9 mm Blue Screw Cap Pre-Slit PTFE/Silicone Septa 100 N9306203 2 mL 10 mm Screw Top Clear Vial 100 N9306053 2 mL 10 mm Screw Top Amber Vial 100 N9306057 10 mm Blue Screw Caps Red Rubber Septa 100 N9306200 10 mm Black Screw Caps PTFE/Silicone Septa 100 N9306205 10 mm Black Screw Caps PTFE/Red
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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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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
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wUltra Clean PTFE/ Silicone septa is optimized for gas chromatography and mass spectrometry. Hot Products Black 8-425 Open Top Screw Cap with 8mm Red PTFE/White Silicone Septa 1.5mm Thick (UltraClean). Ref.No. C0001017 Description 100pcs/pk Blue 11mm Open Top Snap Cap with Red PTFE/White Silicone Septa 1mm Thick (UltraClean). C0001018 Blue
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Headspace vials and caps are used in headspace gas chromatography analysis because of their ability to withstand the pressure from gas. Aijiren headspace vials come in two basic sizes (10 mL headspace vials and 20 mL headspace vials). Both flat bottom and round bottom styles are available for use in a wide variety of headspace instrument platforms.
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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.
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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
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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.
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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.
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Mar 31, 2022 · PTFE/silicone septa. PTFE/Silicone is an ideal choice for analyzing volatile organic chemicals. These analyses happen at low concentrations or during operation at higher conditioning temperatures. Store PTFE/Silicone septa in a glass Purepak jar to ensure: 1. minimal background, 2. low permeability, 3. and the best performance of any headspace
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