these vials are assembled with the following materials: Type 1 borosilicate glass, PTFE/silicone septa, and a polypropylene cap. The vials are available in either clear or amber glass. All of the vials are packaged with an open top cap and a tan/white PTFE/silicone septa. The 40 mL EPA vials.
Pre-slit PTFE/Silicone Septa: A 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to provide for easier needle penetration as well as to release the vacuum that forms when a large volume of sample is withdrawn from a vial. This septum provides chromatographic
PTFE/blue high-purity silicone septum Translucent blue silicone is specially formulated and treated to reduce background from extractables or outgassing of volatile contaminants. The silicone elastomer layer is dense but still easily pierced by most headspace sampling needles. Black rubber septa
They are specifically designed to combine the resealability of silicone with the inertness of PTFE. These discs reseal instantly puncture after puncture, and the PTFE coating is structurally bonded so that no cement is leached or baked out of your sample after needle penetration.
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
Thomas Scientific VOC vials PTFE silicone septa with cap Ptfe Lined Vials at Thomas Scientific E-C Vials w / Rubber Lined Caps, Clear, 4 ml. DWK Life Sciences (Wheaton) A and USP Type I requirements. Cole-Parmer EPA Precleaned TOC Vials, Glass with PTFE Volume (mL) 40. Tube Material Borosilicate Glass. Cap Material Polypropylene.
20ml Clear Voa Vial at Thomas Scientific VOA VIALS are most often used for volatile organic compound analysis. Available in clear 33 expansion and amber 51 expansion borosilicate glass. Open top vials come assembled with polypropylene caps with low-bleed 0.125" PTFE/silicone septa inserted (.135" septa for E-series vials).
40 mL Septa Vials I-Chem PTFE/silicone septa in an open-top 24-414 polypropylene cap. The I-CHEM molded-in septa retainer ring holds the septa securely in place without bonding to the cap, so septa can be removed and replaced as needed. Thin septa vial is also available with a 0.060 in. thick septa for easy Related Products: Toc Vials
Blue, PTFE/red silicone septa 100/pk 500/pk Green, PTFE/red silicone septa 100/pk 5182-0718 500/pk 5185-5829 Red, PTFE/red silicone septa 100/pk 5182-0719 Black, PTFE/red silicone septa 100/pk 5185-5838 Blue, PTFE/white silicone septa 100/pk 5182-0720 500/pk 5185-5863 Green, PTFE/white silicone septa 100/pk 500/pk
Septa are made of silicone rubber with one side having a RED PTFE face, while the opposite side has an ultrathin covering of polypropylene to prevent needle coring when penetrating septa. Compare this item PTFE / Silicone Septa for Sample Screw Caps National Scientific Extremely clean, natural-colored PTFE laminated to clear Silicone.
Narrow-mouth septa bottles are available in clear or amber Type III glass equipped with a 0.045 in. thick blue PTFE/silicone septa in an open-top 24-414 polypropylene cap. The I-CHEM molded-in septa retainer ring holds the septa securely in place without bonding to the cap, so septa can be removed Related Products: Septum Cap Bottle
Vial inserts are used to reduce the capacity of the vial to accommodate smaller samples. Typically 150 to 400µL in volume, they may be made of glass, plastic, or a combination of materials. Closure options include those with and without septa, snap caps, screw caps, and crimp top caps.
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.
Vial septa are available in a variety of materials. Septa, tan PTFE/silicone (diam. x thickness 8 mm x 1.5 mm) are sized to fit screw top vials. They are suitable for use with most organics (until pierced) and are not recommended for use with chlorosilanes. Compare this item 10-425 Septa National Scientific
Septa, PTFE/Silicone blue PTFE/white silicone, diam. × thickness 20 mm × 0.75 mm, pkg of 100 ea; Synonyms: PK100 20MM PTFE/SILICONE SEPTA, .030IN THICK; find Supelco-27539 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich