Supelclean PSA SPE Bulk Packing

pkg of 100 g

Pricing and availability is not currently available.

Quality Level




pkg of 100 g

extent of labeling

8.4% C
3.3% N loading

surface coverage

surface coverage 2.35 μmol/m2


silica gel base material (irregularly shaped)

matrix active group

ethylenediamine-N-propy bonding

particle size

50 μm

pore size

70 Å pore size

surface area

500 m2/g


(1) 10.1, (2) 10.9


0.98-1.05 meq/g capacity

Featured Industry

Food and Beverages

separation technique

ion exchange
normal phase

General description

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

  • Polymerically bonded, ethylenediamine-N-propyl phase that contains both primary and secondary amines
  • A weak anion exchanger with a pKa of 10.1 and 10.9
  • Similar to aminopropyl SPE phases (NH2) in terms of selectivity, but has a much higher capacity due to presence of secondary amine (0.98-1.05 meq/g)
  • Strong affinity and high capacity for removing fatty acids, organic acids, and some polar pigments and sugars when conducting multi-residue pesticide analysis in foods
  • Has been shown to significantly reduce matrix-enhancement effects encountered during the GC analysis of food products
  • Tested for superior cleanliness using GC-FID and GC-MS
  • Bidentate nature of ligand allows for chelation


Supelclean PSA SPE Bulk Packing may be used as a sorbent in the solid-phase dispersive extraction followed by single flow injection multi-commuted system/solid-surface fluorescence spectroscopic analysis of diphenylamine in apples and pears.

Legal Information

Supelclean is a trademark of Sigma-Aldrich Co. LLC


NONH for all modes of transport

WGK Germany


Certificate of Analysis
Certificate of Origin
Veronica Padula et al.
Marine pollution bulletin, 158, 111435-111435 (2020-08-06)
Phthalates, plastic-derived contaminants, are of increasing global concern. This study quantified phthalates in seabirds collected across >1700 km of the Aleutian Islands, Alaska, and contributes to a body of knowledge on plastic contaminants in marine wildlife. We measured six phthalate congeners...
Rapid determination of diphenylamine residues in apples and pears with a single multicommuted fluorometric optosensor
Garcia-Reyes FJ, et al.
Journal of Agricultural and Food Chemistry, 53(26), 9874-9878 (2005)
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.
Read More
Extraction and Analysis of Agricultural Pesticides from Oranges Using the “QuEChERS” Method
Read More
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
Related Content
Solid phase extraction (SPE) is a technique used for rapid, selective sample preparation and purification prior to chromatographic analysis (e.g. HPLC, GC, TLC). SPE is used to exchange sample matrices, concentrate analytes, and remove interferences and contaminants to improve data and protect the analytical column.
Read More

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