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
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
These septa provide adequate venting in order to prevent vacuum formation in the sample vial, which allows for superior sample draw reproducibility across vials. Pre-slit PTFE/Silicone septa have a working temperature range from -40 degrees C to 200 degrees C. The chemical compatibility of the septum is that of silicone, but it does not have
Aijiren's headspace vial caps are engineered to prevent sample contamination while providing consistent, secure seals. Headspace vial caps are available in a variety of materials including aluminum, bimetal, and steel; headspace vial cap septa are available in PTFE/silicone, molded PTFE/butyl, and high-temperature varieties.
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
The 11mm snap-top caps are made of high-quality polypropylene. The caps have a roll-edge or snap-on shape. The snap-top caps provide a secure seal that minimizes evaporation even for volatile samples. PTFE/silicone septa are the product of choice for most HPLC and GC applications where resealability and high purity are critical.
Catalog number: C4015-10. Related applications: Chromatography. Technical Support Customer Service. For use with 13-425 threaded caps or 13mm Snap/Crimp Caps, Aijiren Tech™ 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.
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.
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PTFE/Silicone Septa: (T/S) High quality, pure silicone is laminated to 0.005” thick PTFE to give a pure, highly inert septum with excellent resealing characteristics even after repeated punctures. PTFE/Silicone septa are the preferred product for use in most HPLC and GC applications where resealability and high purity are critical.
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.
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.
Certified Vial Kit, Low Adsorption (LA), 2 mL, pk of 100 volume 2 mL, amber glass vial (with marking spot), natural PTFE/silicone septa, thread for 9 mm; find Supelco-29653U MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich
The commonly used PTFE/silicone HS septa are typically specified for use up to 200 °C, because at high temperature (>200 °C), septum contaminates begin to dramatically leach out of the silicone layer. A series of siloxane peaks are detectable when using PTFE/silicone HS septa at high temperature. The intensity of the siloxane peaks increases
Molded Septa are manufactured from high quality, low bleed material that uses the same exclusive LB-2 rubber formulation chromatographers are accustomed to using. Design. Solid Disc. Type. Septa. For Use With (Equipment) Low Bleed GC-MS Columns. Temperature (Metric) Max. 350°C.
