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54127-U

Supelco

2-(2-Pyridyl)ethyl Silica Gel

bed wt 100 mg, volume 1 mL, pk of 108

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About This Item

Codice UNSPSC:
41115712
NACRES:
NB.21

Composizione

bed wt, 100 mg

Confezionamento

pk of 108

tecniche

solid phase extraction (SPE): suitable

Volume

1 mL

Gruppo funzionale matrice

WAX phase

applicazioni

food and beverages

Tecnica di separazione

ion exchange

Descrizione generale

Retention Mechanism: Anion-exchange
Sample Matrix Compatibility: Organic or aqueous Solutions

  • Weak anion exchanger ideal for extracting strong basic compounds that remain charged at all pH levels
  • Unlike conventional weak anion exchange SPE phases such as -NH2 (aminopropyl) that have a pKa of 9-10, a pH ≤ 7 is required to protonate or ionize the stationary phase to facilitate analyte retention. Elution is typically done by increasing the pH to 11 resulting in neutralization of the SPE phase.
  • 2-(2-pyridyl)-ethyl silica gel has a pKa of ~6. Therefore, analyte elution is feasible at a pH ≥ 7. This characteristic is important for extracting analytes that are not stable (e.g. hydrolyzes) at high pHs typically required for elution when using traditional weak anion exchangers.
  • Ideal for extracting acyl-coenzyme A esters from tissue.
  • For more information, please see: Minkler, P.E., Kerner, J., Ingalls, S.T., Hoppel, C.L., Novel isolation procedure for short-, medium-, and long-chain acyl-coenzyme A esters from tissue, Analytical Biochemistry 376 (2008) 275–276

Pittogrammi

Exclamation mark
GHS07

Avvertenze

Warning

Indicazioni di pericolo

H315,H319,H335

Classi di pericolo

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

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Certificati d'analisi (COA)

Lot/Batch Number

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Cellular availability of acetyl-CoA, a central intermediate of metabolism, regulates histone acetylation. The impact of a high-fat diet (HFD) on the turnover rates of acetyl-CoA and acetylated histones is unknown. We developed a method for simultaneous measurement of acetyl-CoA and

Protocolli

Solid Phase Extraction: Normal Phase Methodology

Normal-phase SPE separates analytes based on polar interaction with sorbents in diverse sample matrices.

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