Vial with Septum: Ensuring Sample Security in Clinical Research and Diagnostics

Catalog number: TS-13019. For a convenient, versatile, and cost-effective vial and closure system, choose Thermo Scientific™ Screw Cap Septum Vials. Made of autoclavable borosilicate glass and available with a wide assortment of special closures and accessories, these vials are ideal for sample collection and small derivatization reactions

Jul 1, 2016 · Sample-vial septa must withstand multiple punctures during repeated syringe rinsing prior to injection, but there is no long-term requirement for a lasting seal. There are two remaining measures of vial septum performance: leakage and sample contamination. Vial septa can be made of softer and better sealing materials than inlet septa.

A wide range of vials, closures, and accessory products designed for generalized and specific scientific applications. Various product formats, dimensions, and material compositions are available. Includes autosampler vials, cryogenic storage vials, and serum vials. Thermo Fisher Scientific is dedicated to improving the human condition through

This barrier protects your sample from external contamination while allowing a needle (from a manual or automatic syringe) to enter the vial, and extract the sample for the next stage of separation. Choosing the correct septum material is vital, as it will interact with the analyte in your sample matrix as well as the sampler needle.

The Headspace Sampler is based on Aijiren’s GC and automatic liquid sampler architecture. It provides an inert sample pathway for superior gas chromatography performance without analyte degradation or loss, includes productivity-boosting features, and offers rugged sampling technology to ensure the integrity of every injection.

characteristics. The septum is provided with a thin 0.005” PTFE layer laminated to highly pure silicone, and slit through the center for easier needle penetration and to release the vacuum that forms when a large volume of sample is withdrawn from a vial. This septum provides chromatographic characteristics similar to that

a vial septum and then installing the vial in the sample tray. I adjust the needle to the target depth, then lift the vial by its cap. In the case of my instrument, I expect approximately 1 mm of vertical play if the system is adjusted properly. This play allows a safety margin in case of any variation in vial depth for a given vial model. This

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 autosampler vials, general-purpose vials, and vial accessories for sample collection, storage, and

selection guide Overview Diferent septa material for LC and GC applications There are many diferent types of materials used to produce the septa found in LC and GC vial caps. This document will provide you with the technical guidance you need in order to make the right selection. Choosing the right septa

PTFE-faced butyl septum was used in sealing headspace vials to analyse the sampling efficiency and breakthrough of methyl bromide on activated charcoal using GC. It was also used for sealing water samples during headspace analysis with GC-FID, in a study which demonstrates cross-validation of. Compare this item.

Description: Type I borosilicate glass vials contain a chemical preservative to maintain sample integrity until volatile organic analysis can be performed. SDS Certificates ,89094-172CS,89094-158CS,89094-180CS,89094-160CS,89094-182CS,89094-178CS

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Jan 2, 2006 · 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

Abstract. An important property of a vial cap is the ability to maintain the vial analyte concentration after multiple injections over time. This ability is influenced by different factors such as the volatility of the analyte/diluent, the number of injections, the elapsed time and the injector/cap septum used.

Add to cart. Type 1 borosilicate glass. Clear glass vials with 20mm crimp seal finish are designed to fit most headspace autosamplers. Flat bottom vials maximize heating efficiency when used with bottom. Round bottom vials are more easily handled by robotic arms that lift the vial from the tray. Round bottom vials distribute the internal