52636-U

Discovery^® DSC-NH₂ SPE Tube

bed wt. 100 mg, volume 1 mL, pk of 108

• Sinonimo/i: NH2 (amine) SPE cartridge tube
• Codice UNSPSC: 41115712
• NACRES: NB.21

Proprietà

• Materiali: PE frit (20 μm); polypropylene
• Caratteristiche: endcapped
• Composizione: bed wt., 100 mg
• Confezionamento: pk of 108
• tecniche: solid phase extraction (SPE): suitable
• Area superficiale: 480 m²/g
• Volume: 1 mL
• Matrice: silica gel base material (irregularly shaped, acid washed)
• Gruppo funzionale matrice: amino phase
• Dimensione particelle: 50 μm
• Dimensione pori: 70 Å pore size
• pKa: 9.8
• Capacità: ~0.43 meq/g capacity
• applicazioni: food and beverages
• Tecnica di separazione: ion exchange; normal phase

Descrizione

Descrizione generale

Retention Mechanism: Normal phase or Anion-exchange
Sample Matrix Compatibility: Organic or aqueous solutions

• Polymerically bonded, aminopropyl phase that is very polar in nature (hydrogen bonding) allowing for both normal phase and ion exchange applications
• A weak anion exchanger with a pKa of 9.8. At pH 7.8 or below, the functional groups are positively charged
• Ion exchange capacity is ∼ 0.43 meq/g.
• Allows the rapid release of very strong anions such as sulfonic acids that may be retained irreversibly by strong anion exchangers
• Can be used in some reversed-phase applications (due to ethyl spacer); however, it is predominately used as an ion-exchange or normal phase sorbent due to its polar nature

Note legali

Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 3
• Punto d’infiammabilità (°F): >464.0 °F
• Punto d’infiammabilità (°C): > 240 °C