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23318-U

Supelco

Joints d′injecteur

pkg of 2 ea

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About This Item

Code UNSPSC :
41121815
Nomenclature NACRES :
SB.54

Matériaux

stainless steel (gold-plated)

Conditionnement

pkg of 2 ea

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Description générale

The inlet seal on an Agilent GC must be regularly changed to prevent sample adsorption due to accumulation of sample residue and/or septum fragments. Supelco manufactures replacement inlet seals using a high quality stainless steel plated with pure gold to insure inertness. No brighteners are used in the plating process. This straight design seal is suitable for applications with low split flows (<200 mL/min.). Each pack includes one washer for each seal.

Application

Gold-plated inlet seal may be used in the GC injection port for thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS), where residual accumulation was noticed resulting in analyte adsorption and elevating signal background. Hence, replacing the gold-plated seal in regular intervals decreased the interference.

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Precautions for in-injection port thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) as applied to aerosol filter samples.
Ho, Steven Sai Hang, et al.
Atmospheric Environment, 45, 1491-1496 (2011)

Articles

Analysis of Pesticide Residues in Pistachios Using QuEChERS Extraction and Cleanup with Supel™ QuE Z-Sep+

Pistachios contain approximately 45% fat, which can result in a significant amount of coextracted matrix in the acetonitrile extract generated using the QuEChERS procedure. A zirconia based adsorbent significantly reduces coextracted matrix prior to LC-MS or GC-MS.

Improved Recoveries and Lower Background for GC/MS/MS and LC/MS/MS Analysis of Pesticides in Green Tea

A procedure for cleanup of green tea extracts provides low background and allowed for the analysis of more pesticides at lower levels than QuEChERS. Uses less solvents and no toluene.

Analysis of Pesticide Residues in Ginger Powder Using QuEChERS Extraction and Clean-up with a Novel Dual Layer SPE Cartridge

The odor and pungency of ginger is due to the presence of terpenes, gingerols and shogaols. These compounds contribute to the highly complex matrix of ginger, which subsequently presents a challenge in low level analyses of contaminants. A novel 2-layer SPE cartridge efficiently reduces background for pesticide determination.

Protocoles

Determination of PAHs in Paprika Powder Using a Novel SPE Cartridge

Determination of PAHs in Paprika Powder Using a Novel SPE Cartridge

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

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