What is the difference between Oasis MCX and Oasis WCX? - WKB223269
Article number: 223269
ENVIRONMENT
- Oasis MCX
- Oasis WCX
- Mixed-mode retention
ANSWER
The Oasis MCX is a strong cation exchanger and the Oasis WCX is a weak cation exchanger. Both have a mixed-mode retention mechanism.
ADDITIONAL INFORMATION
The strong cation exchange MCX surface remains charged over a broad pH range. The weak cation exchange surface of the WCX has a charged surface above approximately pH 4. As pH approaches 4, the WCX surface begins to neutralize and ion exchange capacity drops off.
For additional information see What is the mechanism of retention when using Oasis MCX solid-phase extraction devices? and What is the retention mechanism when using Oasis WCX solid-phase extraction devices?
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