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52746-U Supelco

Discovery® DSC-WCX SPE Tube

bed wt. 10 g, volume 60 mL, pk of 16

  •  NACRES NB.21



Related Categories Analytical/Chromatography, Discovery DSC-WCX SPE Products, Discovery SPE Tubes, Sample Preparation & Purification, Solid Phase Extraction (SPE) More...
Quality Level   100
material   polypropylene tube
composition   bed wt., 10 g
packaging   pk of 16
volume   60 mL
matrix   Silica gel base material (irregularly shaped, acid washed)
matrix active group   carboxypropyl bonding
particle size   50 μm
pore size   0.9 mL/g pore volume
  70 Å pore diameter
surface area   480 m2/g
capacity   0.15 meq/g total capacity
Featured Industry   Food and Beverages
separation technique   ion exchange


General description

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

• A polymerically bonded, ethylenediamine triacetic acid phase with a pKa of 4.8
• Counter ion is Na+
• Ion exchange capacity is ∼ 0.15 meq/g
• Carries a negative charge at pH 6.8 or above
• A pH of 2.8 or below neutralizes this phase for easier elution of strong cationic analytes that are neutralized only at extreme basic conditions
• Typically used when dealing with very strong cationic (high pKa) compounds that may be irreversibly retained on strong cation exchangers

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

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Protocols & Articles

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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