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Clean-Up® QAX (w/ Hydroxide Counter Ion)

Compounds are retained on the sorbent through ionic bonds. Therefore, it is essential that the sorbent and the analyte to be extracted are charged. Generally, the number of molecules with charged cationic groups increases at pH values below the molecules pKa value. The number of molecules with charged anionic groups decreases at pH values below the molecule’s pKa value. To ensure 99% or more ionization, the pH should be at least two pH units below the pKa of the cation and two pH units above the pKa of the anion. Elution occurs by using a solvent to raise the pH above the pKa of the cationic group or to lower the pH below the pKa of the anion to disrupt retention. At this point, the sorbent or compound will be neutralized.

Clean-Up Quaternary Amine with Hydroxide Counter Ion

  • Sorbent Chemical Phase = QAX
  • Organic Loading = 8.4%
  • Average Pore Size = 60Å
  • Anion Exchange = 0.230 meq/g
  • Surface Area = 500 m²/g
  • Pore Volume = 0.77 cm³/g

UCT Food Safety & Environmental Product Catalog 2017


Part Number

Products

Price

Qty / Buy

UCT-CHQAX1L1 Clean-Up CHQAX SPE Cartridges, 50mg, 1mL, pk.100 price on request
UCT-CHQAX111 Clean-Up CHQAX SPE Cartridges, 100mg, 1mL, pk.100 price on request
UCT-CHQAX123 Clean-Up CHQAX SPE Cartridges, 200mg, 3mL, pk.50 price on request
UCT-CHQAX153 Clean-Up CHQAX SPE Cartridges, 500mg, 3mL, pk.50 price on request
UCT-CHQAX156 Clean-Up CHQAX SPE Cartridges, 500mg, 6mL, pk.50 price on request
UCT-CHQAX1M6 Clean-Up CHQAX SPE Cartridges, 1000mg, 6mL, pk.30 price on request
UCT-CHQAX12Z Clean-Up CHQAX SPE Cartridges, 200mg, 10mL, pk.50 price on request
UCT-CHQAX15Z Clean-Up CHQAX SPE Cartridges, 500mg, 10mL, pk.50 price on request
UCT-CHQAX12M15 Clean-Up CHQAX SPE Cartridges, 2000mg, 15mL, pk.20 price on request
UCT-CHQAX15M25 Clean-Up CHQAX SPE Cartridges, 5000mg, 25mL, pk.20 price on request
UCT-CHQAX00C SELECTRASORB™ CLEAN-UP® QAX w/ Hydroxide Counter Ion, irregular, 40-63µm, 100g price on request
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