Properties:
| Related Categories |
Analytical/Chromatography,
Discovery DSC-NH2 SPE 96-well Plate,
Discovery DSC-NH2 SPE Products,
Discovery SPE 96-Well Plates,
Discovery SPE Tubes,
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material
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PE frit (20 μm)
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|
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polypropylene
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feature
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endcapped
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composition
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bed wt., 50 mg/well
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packaging
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pk of 1
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volume
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2 mL
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matrix
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silica gel base material (irregulary shaped, acid washed)
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matrix active group
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amino phase
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particle size
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50 μm
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pore size
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70 ? pore size
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surface area
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480 m2/g
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pKa
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9.8
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capacity
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~0.43 meq/g by wetted bed volume
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mode of chromatography
|
Normal phase
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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
Legal Information
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