Trust our low-level certified vials for Total Organic Carbon testing and sampling. Manufactured, tested and packaged by exacting standards,Aijiren Tech™ TOC Certified Containers are certified to contribute <10ppb or < 20ppb TOC as background. Product Overview. Recommendations. Documents.
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.
Oct 22, 2014 · NTSB7995-24 Septa PTFE/silicone EPA, 0.25mm PTFE/2.25mm silicone 100
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For over two decades, EP Scientific has set the standard for sample
Both types of silicone and butyl rubber septa have a PTFE barrier layer which faces the sample, which reduces the contact between the sample and the silicone and butyl rubber. Before the PTFE layer is punctured, the chemical compatibility properties of the PTFE will
Used primarily for routine analysis in gas chromatography. Offers moderate ability to reseal and good chemical inertness. Not recommended for multiple injections or holding samples for further analysis. PTFE is protective layer that once broken exposes rubber to chemical attack.
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
Polytetrafluoroethylene ( PTFE) is a synthetic fluoropolymer of tetrafluoroethylene and is a PFAS that has numerous applications. The commonly known brand name of PTFE-based composition is Teflon by Chemours, [3] a spin-off from DuPont, which originally discovered the compound in 1938. [3]
PTFE/Silicone septa offer exceptional chemical resistance, minimizing contamination risks and preserving sample integrity across a wide range of aggressive chemicals. Excellent Temperature Stability: These septa maintain their integrity in extreme temperatures, displaying minimal shrinkage or expansion.
PTFE disk septa A solid disk of 0.010” thick pure PTFE offers superior chemical inertness against the most aggressive solvents. The thin membrane allows for penetration by most normal gauge metal HPLC needles. PTFE septa are not resealable and should not be used with highly volatile solvents, short cycle times or multiple injection methods.
Pre-assembly black open-topped cap andred PTFE/white Silicone septa: SC133131: 13-425: Pre-assembly black open-topped cap andred PTFE/white Silicone /red PTFE septa: SC134131: 13-425: Pre-assembly black open-topped cap and nature PTFE/nature silicone septa: SC131132: 13-425: Pre-assembly black solid cap and white PTFE/red Silicone septa
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.
PTFE/Synthetic: (PTFE/RR) red rubber septa -30 +110 -22 +230 PTFE/ High-performance red
The C&G 40 mL precleaned VOA (volatile organic compound) vial is mainly used in research laboratories or in chemical industries. It is suitable for use with autosamplers, solid cap and liners for analysis. This L3 vial comes with a 24-414 white PTFE septa cap which offers tight sealing of sample. Compare this item.
PTFE and fl uoropolymers Very good chemical resistance and used as a protective layer for less resistant elastomers. PTFE – T, T02 For single injections and short sample cycles. This type of septa is not resealable. Viton – V1 Viton provides the best chemical resistance with limited resealability. Recommended for chlorinated solvents.
Aijiren vial cap septa are especially formulated and constructed to provide optimum system performance, with minimal coring and superior chemical inertness. The softness or hardness (durometer) is matched to the instrument and designed to work well with syringes and samples. The size of the septum is critical to proper sealing.
