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
Product Name
Discovery® DSC-SAX SPE Tube, bed wt. 1 g, volume 6 mL, pk of 30
material
polypropylene tube
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
Quality Level
application(s)
food and beverages
separation technique
ion exchange
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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
Legal Information
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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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.
Protocols
Normal-phase SPE separates analytes based on polar interaction with sorbents in diverse sample matrices.
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