Discovery® DSC-NH2 SPE Tube
SUPELCO/52641-U - bed wt. 2 g, volume 12 mL, pk of 20
Product Type: Equipment/Book
| application(s) | food and beverages |
| capacity | ~0.43 meq/g capacity |
| composition | bed wt., 2 g |
| feature | endcapped |
| material | PE frit (20 μm) |
| polypropylene | |
| matrix | silica gel base material (irregularly shaped, acid washed) |
| matrix active group | amino phase |
| packaging | pk of 20 |
| particle size | 50 μm |
| pKa | 9.8 |
| pore size | 70 Å pore size |
| Quality Level | 100  |
| separation technique | ion exchange |
| normal phase | |
| surface area | 480 m2/g |
| technique(s) | solid phase extraction (SPE): suitable |
| volume | 12 mL |
| 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 Merck KGaA, Darmstadt, Germany |
| WGK Germany | WGK 3 |
| Flash Point(F) | 464.0 °F |
| Flash Point(C) | > 240 °C |
| UNSPSC | 41115712 |