52666-U
Discovery® DSC-SAX SPE Tube
bed wt. 1 g, volume 6 mL, pk of 30
Synonym(s):
SAX SPE cartridge tube, Strong Anion Exchange
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About This Item
material
polypropylene tube
Quality Level
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
ammonium ion, quaternary bonding, polymerically bonded, chloride counter-ion
particle size
50 μm
pore size
0.9 mL/g pore volume, 70 Å pore diameter
capacity
0.14 meq/g total capacity
application(s)
food and beverages
separation technique
ion exchange
General description
Sample Matrix Compatibility: Organic or aqueous solutions
- A polymerically bonded quarternary amine that remains positively charged at all pH levels
- Counter ion is Cl-
- Ion exchange capacity is ∼ 0.14 meq/g
- Commonly used when extracting weaker anions (e.g., carboxylic acids) that may not bind strongly enough to weaker anion-exchangers
- Selectivity can be modified by changing the counter ion with the appropriate buffer during conditioning
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Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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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 |
|---|---|
| 52666-U | 04061833527016 |