PTFE Silicone Septa for Sample Analysis

Content. Aijiren produces matching Closures for HPLC Vials, especially Septa, which is made of Silicone and PTFE. Septa can ensure that the hplc vials are sealed. At the same time, it must ensure that the automatic injection needle can penetrate into the interior of Vias for sampling, so for Septa There are certain requirements for the thickness.

Vial septa are available in a variety of materials. Septa are selected based on the chemical properties of the sample and the temperature to which the vial will be subjected during the analysis. PTFE/Silicone septa are for use with most organic solvents but chlorosilanes. It has good reseal ability and can withstand a temperature of 250°C.

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

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

Nov 5, 2018 · For an ELSD, RI or MS detector, PTFE or PE septa would be the recommendation. PTFE/Silicone septa could be used for single use. PTFE/Silicone septa have the chemical resistivity of PTFE until

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 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.

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.

PTFE/white silicone purepack septa Excellent choice for general volatiles analysis. Septa are packed in a glass PurePak jar to assure low background, low permeability, and the highest performance of any headspace septum. PTFE/Silicone septa provide excellent resealing characteristics and broad chemical compatibility.

18 mm PTFE/Butyl Assembled Caps/Septa 3.2 mm thickness 100 N9306076 18 mm PTFE/Silicone Assembled Caps/Septa 3.2 mm thickness 100 N9306077 18 mm Red PTFE/White Silicone Metal Screw Cap/Septa 100 N6356474 1.3 mm thickness 8 mm hole 18 mm White PTFE/Transparent Blue Silicone Metal Screw Cap/Septa 100 N6356475 1.3 mm thickness 8 mm hole

Figure 3 - Typical mass chromatogram of volatile residue in hexane caused by PTFE/silicone septa: a) hexane extract of a piece of septum; b) vial septum was punctured once by a syringe to sample 1 μL hexane for GC analysis; c) hexane in the last vial was reanalyzed after 3 days; and d) analyzed immediately after 100 μL hexane was added from one vial to another (the septum was punctured 10

Analytical Vials. Vials play a significant role in analytical analysis and result reproducibility. Vials must be inert and free of extractables or leachables to prevent affecting results. Using certified, application-specific, contaminant-free vials can significantly reduce risk. We offer a broad spectrum of Supelco ® products including

Supplier 2 PTFE/silicone HS septa Claimed can be used up to 200 °C Supplier 1 PTFE/silicone HS septa Claimed can be used up to 200 °C Aijiren High Performance septa Support high temperature HS analysis up to 300 °C 22.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 22.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 22.00

make PTFE/silicone septa suitable for all types of chromatographic applications . A thin film of PTFE is laminated to the side of the septum that faces the sample to limit exposure of the elastomer to the solvent . PTFE/Silicone septa are ideal for use in most HPLC and GC applications where resealability and purity are critical . Pre-slit PTFE

Each filter vial is comprised of two parts: the external vial and internal plunger with an integrated filter and cap with a pre-slit PTFE/Silicone septa. Simply, dispense your sample into the external vial and compress the internal plunger to filter. This produces a particulate-free sample ready for analysis. Verex Filter Vials are a standard