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
Legal Information
Discovery is a registered trademark of Sigma-Aldrich Co. LLC
material: PE frit (20 μ. m), polypropylene . Quality Level: 100. product line: Discovery®. . feature: endcapped. composition: bed wt., 500 . mg . packaging: pk of 54. technique(s): solid phase extraction (SPE): suitable. surface area: 480 . m2/g . volume: 3 . mL . matrix: silica gel base material (irregularly shaped, acid washed). matrix active group: amino phase. particle size: 50 . μ. m. pore size: 70 . Ã… pore size. pKa : 9.8. capacity: ~0.43 . meq/g capacity. application(s): food and beverages. separation technique: ion exchange, normal phase. Storage Class Code: 11 - Combustible Solids. WGK: WGK 3. Flash Point(F): 464.0 °F. Flash Point(C): > 240 °C.- UPC:
- 41105328
- Condition:
- New
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- WeightUOM:
- LB
- MPN:
- 52637-U
