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. PTFE/Silicone septa are formulated for different hardness (durometer) meeting requirements
Septa can be made from a range of materials including PTFE, silicone, red rubber, luoroelastomers, and butyl to name. few. The materials are layered together in one of three options: Choose a material that is as inert as possible to your sample analyte and makeup solvents.
PTFE/ Synthetic Red Rubber septa are an economical choice for general GC and HPLC applications. Used primarily for routine analysis in gas chromatography with FID, TCD and FPD detectors or HPLC with UV/Vis or RI detectors, PTFE/Synthetic Red Rubber septa offer good resealability and excellent chemical inertness before puncture.
Septa materials & properties. Septa are made from different materials. See below for definitions and uses of different types of septa materials. Rubber septa. Used primarily for routine analysis in gas chromatography. Offers moderate ability to reseal and good chemical inertness.
You may also want to explore the Red, 12 x 32 mm Screw Neck Cap and Preslit PTFE/Silicone Septum, 100/pk, whose septum allows you to replace the glass vials' preslit PTFE/Silicone septum and provides enough venting to prevent vacuum formation in the sample vial, resulting in great sample-draw repeatability and excellent resealing properties.
Septen, PTFE/Silikon/PTFE red PTFE/silicone/red PTFE, septum diam. × thickness 11 mm × 0.040 in., for use with 4mL vial, pkg of 100 ea View Price and Availability
PTFE-faced butyl septa may be used for headspace vials to assess sampling efficiency and breakthrough of methyl bromide on activated charcoal. Septum may be used to seal vial during collecting urine samples for unmodified benzene analysis using HPLC method.
Septa, PTFE/Silicone, tan PTFE/silicone septum, septum diam. × total thickness × PTFE thickness 18 mm × 0.060 in. × 2 mil, pkg of 144 ea Expand View Pricing
An LCMS Certified Vial is an autosampler vial that is held to the tightest dimensional characteristics and cleanliness properties, as well as tested strictly for adsorption properties. LCMS Certified Clear Glass 12 x 32 mm Screw Neck Max Recovery Vial, with Cap and PTFE/Silicone Septum, 2 mL Volume, 100/pk
PTFE-faced butyl septa may be used for headspace vials to assess sampling efficiency and breakthrough of methyl bromide on activated charcoal. Septum may be used to seal vial during collecting urine samples for unmodified benzene analysis using HPLC method.
material. 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
Tuf-bond Septa (9711D10 to D45) Thickness: 100 mils Of silicone rubber with PTFE facing 10 mils thick Septa of butyl rubber, silicone rubber or rubber-laminated PTFE are available on special order. Septum diameter indicated in listings. Compare this item.
A specially moulded seal with a PTFE insert. Sealing surface of Butyl and PTFE affects a more positive seal than non-PTFE-faced septa. Ideal choice for temperatures below 125°C. Good sealing characteristics, excellent resistance to most solvents with reduced coring and high puncture tolerance. PTFE provides increased chemical resistance.
The PTFE/Silicone septum has a recommended operating temperature range of -40 ˚C to 200 ˚C, making it usable across a wide range of applications. All of Aijiren Technology Polypropylene Screw Neck Vials, with Cap and Preslit PTFE/Silicone Septum, are manufactured and handled using chemically inert materials to ensure there are no contaminants or
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 that
