Supelclean SAX/PSA SPE Tube

bed B 250 mg (Supelclean PSA SPE), bed A 250 mg (Supelclean LC-SAX SPE), volume 6 mL, pk of 30



PE frit
polypropylene hardware

Quality Level


bed A, 250 mg (Supelclean LC-SAX SPE)
bed B, 250 mg (Supelclean PSA SPE)


pk of 30


6 mL

matrix active group

PSA phase
SAX phase

Featured Industry

Food and Beverages

separation technique

ion exchange
normal phase

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General description

Retention Mechanism: Normal-phase and anion-exchange
Sample Matrix Compatibility: Organic or aqueous solutions

  • Dual layer SPE tube that contains both Supelclean SAX (upper layer) and PSA (lower layer) SPE sorbents (separated by PE frit)
  • Supelclean SAX is a quarternary amine, Cl- counter-ion.
  • Supelclean PSA an ethylenediamine-N-propyl phas that contains both primary and secondary amines.
  • Ideal for removing matrix components (fatty acids, organic acids, polar pigments, and some sugars) when conducting multi-residue pesticide analysis in foods
  • In compliance with the Luke II method which uses SPE to remove matrix interference and enhancement of pesticides from food for GC-ITMS analysis

Legal Information

Supelclean is a trademark of Sigma-Aldrich Co. LLC


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Hazard Statements

Precautionary Statements


NONH for all modes of transport

WGK Germany


Certificate of Analysis
Certificate of Origin
SPE retention mechanism in this case is based on the electrostatic attraction of charged functional groups of the analyte(s) to oppositely charged functional groups on the sorbent.
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Retention occurs through polar interaction between the sorbent and analytes. Typical sample matrices that can be employed in normal-phase SPE include hydrocarbon or fatty oils diluted in a solvent like hexane, isooctane, chlorinated solvent, THF, diethyl ether, or ethyl acetate.
Read More

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