52640-U
Discovery® DSC-NH2 SPE Tube
bed wt. 1 g, volume 6 mL, pk of 30
Synonym(s):
NH2 (amine) SPE cartridge tube
Select a Size
About This Item
Quality Level
material
PE frit (20 μm), polypropylene
product line
Discovery®
feature
endcapped
composition
bed wt., 1 g
packaging
pk of 30
technique(s)
solid phase extraction (SPE): suitable
surface area
480 m2/g
volume
6 mL
matrix
silica gel base material (irregularly shaped, acid washed)
matrix active group
amino phase
particle size
50 μm
pore size
70 Å pore size
pKa
9.8
capacity
~0.43 meq/g capacity
application(s)
food and beverages
separation technique
ion exchange, normal phase
General description
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
Still not finding the right product?
Explore all of our products under Discovery® DSC-NH2 SPE Tube
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
>464.0 °F
flash_point_c
> 240 °C
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Protocols
Normal-phase SPE separates analytes based on polar interaction with sorbents in diverse sample matrices.
Articles
SPE retention mechanism in this case is based on the electrostatic attraction of charged functional groups of the analyte(s) to oppositely charged functional groups on the sorbent.
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 52640-U | 04061832556215 |