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52578-U Supelco

Supelclean PSA SPE Tube

bed wt. 200 mg, volume 3 mL, pk of 54

  •  NACRES NB.21



Related Categories Analytical/Chromatography, Sample Preparation & Purification, Solid Phase Extraction (SPE), Supelclean ENVI and Supelclean SPE Cartridges, Supelclean PSA SPE Products More...
Quality Level   100
material   PE frit (20 μm porosity)
  polypropylene hardware
composition   bed wt., 200 mg
packaging   pk of 54
extent of labeling   8.4% C loading
  3.3% N loading
volume   3 mL
surface coverage   surface coverage 2.35 μmol/m2
matrix   silica gel base material (irregularly shaped)
matrix active group   ethylenediamine-N-propy bonding, polymerically bonded
particle size   50 μm
pore size   70 Å pore size
surface area   500 m2/g
pKa    (1) 10.1, (2) 10.9
capacity   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

Legal Information

Supelclean is a trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 


Certificate of Analysis (COA)

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Protocols & Articles


Solid Phase Extraction: Ion Exchange Methodology

In order for electrostatic retention to occur, both analyte and sorbent functional groups must be in their ionized form. This is done through strict pH control of the sample matrix. For basic analyte...
Keywords: Agriculture, Buffers, Herbicides, Ion Exchange, Pharmaceutical, Solid phase extractions

Solid Phase Extraction: Normal Phase Methodology

In order for polar retention to occur between the sorbent and the sample, the analyte must be introduced to the SPE device in a non-polar sample or mobile phase environment. Therefore, typical sample...
Keywords: Cosmetics, Fractionation, Gas chromatography, Separation, Solid phase extractions, Solvents, Sonication

Related Content

SPE Cartridges (Tubes) - Phase Selection Guide

The SPE Tube Configuraton Guide will help you choose the appropriate bed weight and cartridge dimensions.
Keywords: Agriculture, Calorimetry, Environmental, Fractionation, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Pesticides, Pharmaceutical, Solid phase extractions

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