Materials commonly used for vials include glass, polypropylene and TPX. Materials commonly used for caps include polypropylene, low density and high density polyethylene, and urea resin. Materials commonly used for septa include PTFE, silicone, natural red rubber, butyl rubber, Viton, polypropylene and polyethylene.
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.
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.
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
HS blank chromatograms from PTFE/silicone headspace septa from several competitors with High Performance septa. As shown in the figure, the High Performance septa provided low HS chromatographic background at 300 °C. 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 Supplier 3 Thermaseal HS septa Claimed can be used up to 300 °C
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
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
the solvent. PTFE/Silicone septa are ideal for use in most HPLC and GC applications where resealability and purity are critical. Pre-slit PTFE/silicone septa Pre-slit septa are offered in many of the same formulations as for non-slit PTFE/silicone septa and shares most of the physical and chemical characteristics. The septum is provided with a
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.
Ten minutes after sealing, an SPME fiber was introduced to the vial for pre-concentration and to enrich the gases emitted by the septum. This extraction stage was performed for 10 min at 30°C. Afterwards, a GC–MS analysis was performed. The analysis of outgassing from each septum was repeated 3 times.
Chemglass. Replacement septa for use with MW-102 open-top screw caps on Minum-Ware® glassware components. 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.
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.
PTFE/Silicone Vial Kit, Snap, µVial i3 (Qsert), Clear w/ Patch + PTFE/Silicone, preSlit 100/pk AR0-9671-12 AR0-9672-12 1000/pk AR0-9671-13 AR0-9672-13 See page 32 for specialty vials product details. Snap-Top Snap-Top Vial Products Phenomenex l WEB: www.phenomenex.com
2 mL Short Thread Screw Glass Vial, Level 3. Unit Size. Pack of 100. Showing 8 of 8. Save to list. Add to cart. HPLC and GC Certified (Kits only) For chromatographic analysis. • Tested and certified for up to 15 critical physical specifications to prevent technical /performance issues.
PTFE/Butyl (Pharma Fix Septa) Aluminum Cap N9306224 PTFE/Red Rubber (red) Aluminum Cap, Star Spring and Septa N9304147 N9302978 PTFE/Silicone (white) Aluminum Cap, Star Spring and Septa N9304146 B4000022 PTFE/Silicone (white) Low Bleed Aluminum, Skived Pressure Relief N9302975 PTFE/Silicone (white) Low Bleed Aluminum, Skived (non-Pressure
