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57168-U Supelco

Discovery® DSC-SCX SPE Tube

bed wt. 500 mg, volume 3 mL, pk of 1000



Related Categories Analytical/Chromatography, Discovery DSC-SCX SPE Products, Discovery SPE Tubes, Sample Preparation & Purification, Solid Phase Extraction (SPE) More...
composition   bed wt., 500 mg
packaging   pk of 1000
volume   3 mL
matrix   Silica gel base material (irregularly shaped, acid washed)
matrix active group   sulfonic acid bonding
particle size   50 μm
pore size   0.9 mL/g pore volume
  70 Å pore diameter
surface area   480 m2/g
capacity   0.8 meq/g total capacity
mode of chromatography   Ion exchange


General description

Retention Mechanism: Cation exchange
Sample Matrix Compatibility: Organic or aqueous solutions

• A polymerically bonded, benzene sulfonic acid functional group, pKa (< 1.0)
• Counter ion is H+
• Silica support allows for use with very organic solvents (no shrinking/swelling)
• Excellent capacity (0.8 meq/g) for cleaning up solution phase combinatorial chemistry reactions (removing target molecules from reaction by-products and excess reagents)
• The presence of the benzene ring offers some mixed-mode capabilities (hydrophobic interactions) that should be considered when extracting cations from aqueous matrices

Legal Information

Discovery is a registered trademark of Sigma-Aldrich Co. LLC

Price and Availability

All labs need water

Non-Sterile Millex Syringe Filters
Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.


Certificate of Analysis

Protocols & Articles


Analysis of Melamine in Milk using SPE and HPLC

Recent news stories from China1 have reported incidents of milk, milk products, and infant formula tainted with melamine, a substance used to make plastics and fertilizers. It is not approved for use...
Olga Shimelis, Sr. Research & Development, Carmen T. Santasania, Sr. Applications Chemist
Keywords: Calorimetry, Chromatography, High performance liquid chromatography, Immobilization, Indicators, Liquid chromatography mass spectrometry, Mass spectrometry, Normal-phase chromatography, Phase transitions, Reversed-phase chromatography, Sample preparations, Solid phase extractions, Solvation

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SPE Cartridges (Tubes) - Phase Selection Guide

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Keywords: Agriculture, Calorimetry, Environmental, Fractionation, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Pesticides, Pharmaceutical, Solid phase extractions

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