Products
Jun 01, 2011 · The vials were agitated for 24 h to establish headspace equilibrium. Concentrations of light hydrocarbons (C 1 –C 3) were analyzed at the IFM-GEOMAR laboratory using a gas chromatograph (Carlo Erba, GC 8000 top) equipped with a 30 m capillary column (Restek Q-Plot, 0.32 mm) and a flame ionization detector (FID). Nitrogen Ultraplus 6.0 was
Chromatography Vials. Designed to use separating organic and inorganic compounds for analysis, chromatography vials come in different finishes to guarantee chemical compatibility. Autosampler compatible closures come in different colors, sizes, and septa materials. Offered with a write-on patch, possible identification errors are eliminated.
Nov 01, 2018 · For the measurements 5.00 ± 0.05 g of lamb was placed in a 20 mL vial (aluminium crimp-top with PTFE faced septum, Phenomenex, Torrance, CA, USA) and held at room temperature (22 °C) for 10 min. The sample was then placed in a dry block heater (DBH20D, Ratek Instruments Pty. Ltd., Boronia, Australia) at 30 °C for 5 min.
1CART – Chemistry Department, Organic & Biological Analytical Chemistry, University of Liege,` Liege, Belgium` 2Group Research and Development, British American Tobacco, Southampton, UK Received August 27, 2012 Revised December 14, 2012 Accepted December 19, 2012 Research Article Analysis of mainstream tobacco smoke particulate phase using
Oct 01, 2016 · The experiments were conducted in 8.4-ml crimp vials where 840-μl reaction mixtures contained the following: 50 m m Tris buffer, pH 7.0, 10 m m G6P, 4 units of G6PD, 5.0 m m NADPH, 5.0 μ m RrFNR, and 5.0 μ m of either SynFd or CpFd. 5.0 vol % O 2 was introduced to the headspace for both mixtures at t = 0 min. O 2 concentrations were measured
Restek™ Headspace 20mm Autosampler Vials For use in the concentration and analysis of volatile organic compounds £50.94 - £886.62
18mm Screw top headspace vials, caps, septa. Our screw top headspace vials are a novelty in a crimp-neck dominated field. They provide a ready-to-use, convenient solution that does not require crimping or decrimping tools. Headspace vials, septum and caps can be purchased in various quantities separately or as convenience kits.
Headspace Crimp Vials, 20 mm, Restek. Headspace vials with different volumes and outside diameters are available in a variety of bottom shapes. Clear coloring of these vials allows for easy observation of vial contents. Ordering information: Vial-to-instrument compatibility is designated in instrument reference chart.
Restek Headspace Vials, 20mL (22 x 75) Clear Screw Thread Round Bottom. Restek Headspace Vials, 20mL (22 x 75) Clear Screw Thread Round Bottom, PK of 100. Quantity Pricing. SKU: RES-23082.
Jun 20, 2017 · Beer samples were analysed by adding 5 mL beer and 30 μL internal standard (n-dodecane, 2.73 mg/L stock solution) in a headspace extraction vial (20 mL) containing 1 g of sodium chloride 18. The extraction vial was immediately closed with a magnetic bimetal crimp cap with silicon/Teflon septum.
Aug 24, 2020 · Air was sampled in 20-mL headspace vials (La-pha-pack GmbH, Langerwehe, Germany) sealed with grey butyl-PTFE-lined septa (DWK Life Sciences GmbH, Mainz, Germany) and aluminum crimp caps. 22, 23 The vials were pre-conditioned by flushing with helium or synthetic air for 1 min at an inlet pressure of 2 bar before evacuation for 1 min with a
Saving package: Kit of 1000 screw vials and 1000 screw cap with septa. Snap cap for snap-top vials with PTFE/Silicone septum. Chromatography screw top vials, 4mL, 15 x 45 mm. Open top screw cap with 13-425 thread, PTFE/Silicone septum. Headspace crimp vial, 20 mm. Aluminium crimp cap, Ø20 mm, with septum. Shell vial, 1 mL.
A 1:1 mixture of 2 mol L −1 sodium azide and 20% glacial acetic acid was added to each sample in a gastight and crimp-sealed 20 mL glass vial (Restek Corp., Bellefonte, PA).
Apr 01, 2016 · Crimp and label vials. Forceps can be helpful in placing stoppers and crimps onto each vial. Remove the vials from the chamber and place in a 35 °C incubator for 5 min before placing vials in the GC autosampler. Do six runs of a seven-vial sequence using the “Methane” method on Aijiren GC (Table 1). Each vial should be run in order before
Sample Preparation & Air Sampling. Sample Preparation Products. Vials & Well Plates. 20 mL Headspace Crimp Vials. Share: