high quality headspace gas chromatography with PTFE septa Sigma

PTFE/High Performance Rubber is a highly pure synthetic red rubber septum that provides a reduced background level for specific GC applications, employing sensitive detectors such as ECD or NPD. PTFE/Silicone Septa (T/S) has high-quality, low background/blank value, 100% synthetic pure silicone septa.

Crimp caps and septa,packed in transparent PE bag, neutral cartons outside, and then all materials will be packed on plastic pallets to protect quality better. （3）Company Profile Aijiren As a global supplier of Chromatography vials, closures, septa and syringe filters, Aijiren devote analytical test and laboratory consumables to provide high

And we devote to analytical test and laboratory consumables with high quality, effecient service and favorable price. To offer better solution of sampler preparation, Full production line is available, including a series of sample vials from 1ML to 1,000ML; Septa from 8mm to 44mm diameter; Syringe filtermade of various membrane filter, etc.

0.120" Natural Silicone with 0.005" Natural PTFE. Designed for highly demanding volatile analyses (Headspace) up to a maximum of 200C. High quality silicone compounds are used to ensure proper re-sealing and reduced chances of coring. Septa is pre-conditioned to ensure low bleed (see technical info) 10ml gas chromatography headspace crimp vials

May 10, 2005 · The vials were closed with crimp using aluminium caps with butyl rubber septa and put into the headspace sampler. The solution in vials was mixed and kept at 70 °C for 30 min. After that time the headspace sample was automatically transferred into a gas chromatographic column. All analyses were done in triplicate. 2.3. Gas chromatographic

Aug 02, 2020 · The vials were stirred and immediately closed after the addition of salt. Screw-cap glass vials (10 mL and 20 mL) with silicone/PTFE septa (Supelco, PA, USA) were used. 2.2. Chemicals. A range of reference chemicals were used: an n-Alkane (C 8-C 22) series was purchased from Sigma-Aldrich

Septa for use with general chromatography vials PTFE/Red Rubber Septa: PTFE/Red Rubber septa are the most popular and economical choice for general gas chromatography applications. These septa are used primarily for routine analysis in gas chromatography with FID, TCD and FPD detectors. PTFE/Red Rubber offers moderate resealability

Mar 27, 2020 · In particular, the caps and septa for the headspace vials need to be suitable for high-temperature operation, assuring the correct tightness and less bleeding, like the 20 mm magnetic tin plate crimp cap, 20 mm red silicone/natural PTFE high temperature, P/N 20-MCB-ST3HT (highly recommended if going up to 300°C, to be used with an automatic

Whether by traditional headspace, or headspace SPME, we have many high-quality products for the determination of methanol in B100 biodiesel. Capillary GC Columns. Gas syringes and headspace vials. All syringes in the Series A-2 line have PTFE-tipped plungers, and easy-to-use push-button valves.

Headspace GC Our solvents for headspace gas chromatography are developed specifically for the analysis of residual solvents in drug substances, excipients, and drug products according to Ph. Eur. and USP. Their high purity is provided by specially designed production processes - for accurate, reliable and reproducible analytical results.

The mid-range advanced green septa combine low inlet adhesion properties with long lifetime and are recommended for GC applications. The blue septa offer a high-performance cost-effective alternative, offering a good level of inertness and are also recommended for GC applications.

Headspace Sampler Supplies CPH-1552 - 3.8ml Vial, PTFE/Sil Septa,100pk ... Ensure a proper seal with a Chrom Tech screw-thread cap and septa. Made in the ...

Static headspace-gas chromatography (HS-GC) is an indispensable technique for analyzing volatile organic compounds, enabling the analyst to assay a variety of sample matrices while avoiding the

Septa, PTFE/Silicone tan PTFE/silicone septa, diam. × thickness × PTFE thickness 20 mm × 0.125 in. × 2 mil, pkg of 100 ea