57228-U
Discovery® DSC-WCX
pkg of 100 g
Synonym(e):
Discovery® DSC-WCX SPE-Bulkpackung
About This Item
Empfohlene Produkte
Verpackung
pkg of 100 g
Methode(n)
solid phase extraction (SPE): suitable
Aktive Matrixgruppe
carboxypropyl bonding
Anwendung(en)
food and beverages
Trenntechnik
ion exchange
Verwandte Kategorien
Allgemeine Beschreibung
Sample Matrix Compatibility: Organic or aqueous solutions
- A polymerically bonded, ethylenediamine triacetic acid phase with a pKa of 4.8
- Counter ion is Na+
- Ion exchange capacity is ∼ 0.15 meq/g
- Carries a negative charge at pH 6.8 or above
- A pH of 2.8 or below neutralizes this phase for easier elution of strong cationic analytes that are neutralized only at extreme basic conditions
- Typically used when dealing with very strong cationic (high pKa) compounds that may be irreversibly retained on strong cation exchangers
Rechtliche Hinweise
Signalwort
Danger
H-Sätze
Gefahreneinstufungen
Eye Dam. 1 - Skin Sens. 1
Lagerklassenschlüssel
11 - Combustible Solids
WGK
WGK 3
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
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Artikel
SPE retention mechanism in this case is based on the electrostatic attraction of charged functional groups of the analyte(s) to oppositely charged functional groups on the sorbent.
Protokolle
Retention occurs through polar interaction between the sorbent and analytes. Typical sample matrices that can be employed in normal-phase SPE include hydrocarbon or fatty oils diluted in a solvent like hexane, isooctane, chlorinated solvent, THF, diethyl ether, or ethyl acetate.
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