52691-U
Discovery® DSC-SCX SPE Tube
bed wt. 5 g, volume 20 mL, pk of 20
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About This Item
NACRES:
NB.21
UNSPSC Code:
41115712
Quality Segment
material
polypropylene tube
composition
bed wt., 5 g
packaging
pk of 20
technique(s)
solid phase extraction (SPE): suitable
surface area
480 m2/g
volume
20 mL
matrix
Silica gel base material (irregularly shaped, acid washed)
matrix active group
sulfonic acid bonding
particle size
50 μm
pore size
0.9 mL/g pore volume, 70 Å pore diameter
capacity
0.8 meq/g total capacity
application(s)
food and beverages
separation technique
ion exchange
General description
Retention Mechanism: Cation exchange
Sample Matrix Compatibility: Organic or aqueous solutions
Sample Matrix Compatibility: Organic or aqueous solutions
- A polymerically bonded, benzene sulfonic acid functional group, pKa (< 1.0)
- Counter ion is H+
- Silica support allows for use with very organic solvents (no shrinking/swelling)
- Excellent capacity (0.8 meq/g) for cleaning up solution phase combinatorial chemistry reactions (removing target molecules from reaction by-products and excess reagents)
- The presence of the benzene ring offers some mixed-mode capabilities (hydrophobic interactions) that should be considered when extracting cations from aqueous matrices
Legal Information
Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany
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flash_point_c
Not applicable
flash_point_f
Not applicable
Storage Class
11 - Combustible Solids
wgk
nwg
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