Properties:
| Related Categories |
Analytical/Chromatography,
Discovery DSC-NH2 SPE Products,
Discovery SPE Tubes,
Sample Preparation & Purification,
Solid Phase Extraction (SPE)
|
Description:
General description
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
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