575615-U
Discovery® DSC-NH2 SPE 96-well Plate
bed wt. 100 mg/well, pk of 1
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About This Item
NACRES:
NB.21
UNSPSC Code:
41104018
particle size
50 μm
material
PE frit (20 μm), polypropylene
feature
endcapped
composition
bed wt., 100 mg/well
packaging
pk of 1
technique(s)
solid phase extraction (SPE): suitable
surface area
480 m2/g
volume
2 mL
matrix
silica gel base material (irregulary shaped, acid washed)
matrix active group
amino phase
pore size
70 Å pore size
pKa
9.8
capacity
~0.43 meq/g by wetted bed volume
Quality Level
application(s)
food and beverages
separation technique
normal phase
General description
Retention Mechanism: Normal phase or Anion-exchange
Sample Matrix Compatibility: Organic or aqueous solutions
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
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
>464.0 °F
flash_point_c
> 240 °C
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