57228-U
Discovery® DSC-WCX SPE Bulk Packing
pkg of 100 g
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About This Item
UNSPSC Code:
41115712
NACRES:
NB.21
Recommended Products
packaging
pkg of 100 g
technique(s)
solid phase extraction (SPE): suitable
matrix active group
carboxypropyl bonding
application(s)
food and beverages
separation technique
ion exchange
Related Categories
General description
Retention Mechanism: Cation exchange
Sample Matrix Compatibility: Organic or aqueous solutions
Sample Matrix Compatibility: Organic or aqueous solutions
- A polymerically bonded, ethylenediamine triacetic acid phase with a pKa of 4.8
- Counter ion is Na+
- Ion exchange capacity is ∼ 0.15 meq/g
- Carries a negative charge at pH 6.8 or above
- A pH of 2.8 or below neutralizes this phase for easier elution of strong cationic analytes that are neutralized only at extreme basic conditions
- Typically used when dealing with very strong cationic (high pKa) compounds that may be irreversibly retained on strong cation exchangers
Legal Information
Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany
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Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Sens. 1
Storage Class
11 - Combustible Solids
wgk_germany
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.
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