sample preparation headspace gas chromatography metal cap supplier

When it comes to flexibility, ease of use and sensitivity, one family of gas chromatography (GC) systems stands apart: Clarus. Our family of GC instruments delivers the performance you need, day after day, and is compatible with virtually all sample introduction systems, including our world-class TurboMatrix, Headspace, and Thermal Desorption.

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Nanjing Kejie Group was established in 2006, which is a leading manufacturer in R&D, manufacturing and sales of gas chromatography, high efficient liquid chromatography, atomic absorption spectrometer, atomic fluorescence, UV visible spectrophotometer, headspace injector and other analytical instruments and related products.

Headspace vial and then analysed with ITEX. ITEX Parameter: Extraction Speed: 120µl / sec. Total Pumping Strokes: 120 Temperature Pumping Syringe / Sample Incubation: 50°C / 10min. Desorption at 250°C, 15sec. splitless Chromatography: Injection: Splitless 15sec. at 250°C / Carrier gas: 0.2bar Hydrogen Column: BGB-1 15m x 0.32mm ID, 1.0µm film

An analyte pre-concentrator for gas chromatography is disclosed generally comprising a tube packed with an adsorbent, wherein the tube may serve as the liner of a chromatographic injector, as an adsorbent trap coupled to a chromatographic column, and/or as an adsorbent trap coupled to a headspace sampler.

Crawford Scientific is the UK's leading supplier of GC columns from leading manufacturers, Aijiren Technologies and Ohio Valley. We have an extensive range of capillary columns as well as plot and packed columns from brands such as J&W, Varian, Chrompack, and OV.

Sample vials are transported into a heated six-position incubator for preconditioning. After they reach equilibrium, a heated gas-tight syringe moves over the incu-bator and withdraws the headspace sample. After sample injection, the hot syringe is auto-matically cleaned by purging with inert gas. Add the PAL Headspace option to your CombiPAL

EXCELLENT - 10ml screw thread headspace autosampler vials for gas liquid chromatography vials. Product Features: - Made from advanced techlonogy and excellent raw materials. - Could assembled with cap and septa , use them instantly to save your time. - Precise bottle neck size, ensure handle correctly. - Use with 100 vials and 100 caps /

Jul 30, 2018 · In gas chromatography (GC), the sample is vaporized and injected onto the head of a chromatographic column. Elution is brought about by the flow of an inert gaseous mobile phase such as helium, argon, nitrogen, carbon dioxide, and hydrogen. In GC, the mobile phase does not interact with molecules of the analyte, and it only transports the analyte through the column. In two general kinds of GC

Our full-line of capillary gas chromatography (GC and GC/MS) columns includes ionic liquid, MS-grade, Fast GC, GCxGC, chiral, and PLOT columns to serve multiple industries (including environmental, petroleum, chemical, food & beverage, and pharmaceutical).

There are many factors at play in a GC experiment which can affect repeatability, so I’ll work from the sample to the detector to make the workflow easier to follow. Choose good quality vials and when filling, only fill to the shoulder of the vial, leaving a small headspace above the sample liquid.

A wide variety of gas chromatography headspace options are available to you, such as laboratory bottle. You can also choose from screen printing gas chromatography headspace, as well as from liquid medicine gas chromatography headspace, and whether gas chromatography headspace is rubber stopper, or screw cap. There are 38 suppliers who sells

Headspace Sampler Supplies for GC Headspace sampling allows the introduction of volatile compounds to the GC or GC/MS from virtually any sample matrix while leaving unwanted components in a disposable sample vial. This results in less maintenance and longer life for the GC consumables in your lab.

sample loop, in which the headspace gas is precisely gauged. Gas chromatographic separation of analytes is realized on a Restek Rtx®-Wax column (polyethylenglycol) with an internal diameter of 0.25 mm, a coating thickness of 0.25 µm and a length of 30 m. The oven program starts at 50 °C for 3 min, proceeds to 200 °C at 12 K/min and

Jun 15, 2013 · Gas chromatography–mass spectrometry (GC-MS) is a method that combines the features of gas-liquid chromatography and mass spectrometry to identify different substances within a test sample. Applications of GC-MS include drug detection, fire investigation, environmental analysis, explosives investigation, and identification of unknown samples.