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CHROSPE | Polymer WCX

Sorbent code: Y23
Part number: AS-SP-0621.009, 10 x 1 mm ID

Mixed mode SPE – polymeric sorbent having a carboxylic acid as a weak cation exchanger attached to the phenyl group of the divinyl benzene-based polymer sorbent. Depending on the pH of the SPE solvent the WCX sorbent is negatively charged or neutral.

Mixed mode SPE to extract strong bases or quaternary amines. Elution from the WCX sorbent with formic acid in methanol. With a low pH, formic acid as a strong acid will protonate the carboxyl group to become neutral and to release the strong bases or quaternary amines from the mixed mode WCX sorbent.

Shape Irregular 
Bonded phase Modified divinyl benzene 
Average content (mg) 2.8
Particle size (μ) 25 – 35 
Pore volume (mL/g) up to 270 
Surface area (m²/g) — 
Pore diameter (Å) 80
pH range 0 – 14 
Carbon content (%)—
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CHROSPE Polymer WCX

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