AttractSPEâ„¢ - Polymeric SPE cartridges
Polymeric Solid Phase Extraction Sorbents
Sample preparation and clean-up are the key steps in trace analysis for every analytical chemist. Solid phase extraction (SPE) is a powerful technique providing a rapid and selective sample clean-up, a high analyte recovery and preconcentration necessary for an accurate quantitative analysis.
Thanks to its expertise in polymer chemistry, AFFINISEP has developed a complete range of polymeric SPE phases: AttractSPE™.
AttractSPE™ columns and 96-well Plates are sample preparation products making possible the extraction of compounds from complex matrices. AttractSPE™ sorbents support the six common retention mechanisms used in analytical laboratories:
- Polar Modified Reversed Phase: AttractSPE™ HLB
- Mixed-mode Strong Cation Exchange: AttractSPE™ SCX
- Mixed-mode Weak Cation Exchange: AttractSPE™ WCX
- Mixed-mode Strong Anion Exchange: AttractSPE™ SAX
- Mixed-mode Weak Anion Exchange: AttractSPE™ WAX
- Reversed phase: AttractSPE™ DVB
Benefits
AttractSPE™ products provide all the advantages of polymeric sorbents, including robustness, simplified method development, wide applicability and are not affected by drying out. The combination of the water-wettable optimised surface chemistry, high surface area and pH stability ensures high reproducible recoveries for a wide range of analytes.
Determination of the optimal AttractSPEâ„¢ polymeric sorbent
Simply follow the method to choose the optimal AttractSPE™ polymeric phase for your analysis:
- Determine the nature of the target analyte: neutral, acidic or basic.
- Determine the pKa of the analyte.
- Using the following chart, choose the most appropriate AttractSPE™ phase.
List of products
AttractSPEâ„¢ HLB - Polar-modified Reversed Phase
AttractSPE™ HLB is a neutral polymeric reversed phase modified with polar functionalities suited for the extraction of a wide range of analytes (polar, apolar, neutral, acidic, basic...).
AttractSPEâ„¢ SCX - Strong Cation Exchange
AttractSPE™ SCX is a strong cation exchange polymeric phase interacting with the analytes via a mixed mode retention mechanism: ion exchange with strong acid functional groups and reversed phase. It is particularly suited for the extraction of weak bases (pKa 2 - 10).
AttractSPEâ„¢ WCX - Weak Cation Exchange
AttractSPE ™ WCX is a weak cation exchange polymeric phase interacting with the analytes via a mixed mode retention mechanism: ion exchange with weak acid functional groups and reversed phase.It is particularly suited for the extraction of strong bases and quaternary amines (pKa>10).
AttractSPEâ„¢ SAX - Strong Anion Exchange
AttractSPE™ SAX is a strong anion exchange polymeric phase interacting with the analytes via a mixed mode retention mechanism: ion exchange with strong basic functional groups and reversed phase. It is particularly suited for the extraction of weak acids (pKa 2 - 8).
AttractSPEâ„¢ WAX - Weak Anion Exchange
AttractSPE™ WAX is a weak anion exchange polymeric phase interacting with the analytes via a mixed mode retention mechanism: ion exchange with weak basic functional groups and reversed phase. It is particularly suited for the extraction of strong acids (pKa<1).
AttractSPEâ„¢ DVB - Reversed Phase Copolymer
AttractSPE™ DVB is a polystyrene-divinylbenzene copolymer presenting a high hydrophobicity used as a reversed-phase for the extraction of hydrophobic analytes.
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