57214-U
Discovery® DSC-SAX SPE Bulk Packing
pkg of 100 g
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About This Item
UNSPSC Code:
41115712
NACRES:
NB.21
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packaging
pkg of 100 g
technique(s)
solid phase extraction (SPE): suitable
matrix active group
ammonium ion, quaternary bonding
application(s)
food and beverages
separation technique
ion exchange
General description
Retention Mechanism: Anion-exchange
Sample Matrix Compatibility: Organic or aqueous solutions
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
Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class
10 - Combustible liquids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Normal-phase SPE separates analytes based on polar interaction with sorbents in diverse sample matrices.
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