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23318-U

Supelco

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pkg of 2 ea

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About This Item

分類程式碼代碼:
41121815
NACRES:
SB.54

材料

stainless steel (gold-plated)

包裝

pkg of 2 ea

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一般說明

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.

應用

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)

商品

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.

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.

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.

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实验方案

Determination of PAHs in Paprika Powder Using a Novel SPE Cartridge

Paprika is a spice made from dried sweet peppers, and is used for flavor and color in many types of cuisine. Contamination with polynuclear aromatic hydrocarbons (PAHs) can occur when pepper plants are exposed to these pollutants in the environment and/or during the drying process.

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