Chelex 100 Chelating Resin

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Overview

Chelex 100 Resin is a styrene divinylbenzene copolymer containing paired iminodiacetate ions, which act as chelating groups in binding polyvalent metal ions.

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Description

Description

Chelex 100 and COVID-19

Chelex 100 Resin in Pathogen Detection

Streamline your viral RNA extraction with Chelex 100 Resin
or Instagene Matrix.

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Chelex 100 Resin is made of a styrene divinylbenzene copolymer containing paired iminodiacetate ions, which act as chelating groups in binding polyvalent metal ions. The carboxylic acid groups of Chelex 100 Resin classify it as a weak cation exchange resin, but it differs from other exchangers in this class by featuring uniquely high selectivities for metal ions and much higher bond strengths.

Chelex 100 has a stronger selectivity for copper, iron, and other heavy metal ions over monovalent cations such as sodium and potassium. Its selectivity for divalent over monovalent ions is approximately 5,000 to 1, and it has a strong affinity for transition metals, even in highly concentrated salt solutions.

The following forms of Chelex 100 Resin are available:

  • Analytical grade Chelex 100 Resin — exhaustively sized, purified, and converted; suitable for accurate, reproducible analytical techniques
  • Biotechnology grade Chelex 100 Resin — the analytical grade is certified to contain fewer than 100 microorganisms per gram of resin
  • Molecular biology grade Chelex 100 Resin — certified to be endo- and exonuclease-free and contain no ligase inhibitors

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1422822
500 g, cation exchange resin, sodium form, 1% crosslinkage, 50–100 dry mesh size, 300–1,180 µm wet bead size, ~3,500 MW limit
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1422832
500 g, cation exchange resin, sodium form, 1% crosslinkage, 100–200 dry mesh size, 150–300 µm wet bead size, ~3,500 MW limit
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1422842
500 g, cation exchange resin, sodium form, 1% crosslinkage, 200–400 dry mesh size, 75–150 µm wet bead size, ~3,500 MW limit
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1422825
100 g, cation exchange resin, iron form, 1% crosslinkage, 100–200 dry mesh size, 150–300 µm wet bead size, ~3,500 MW limit
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1421253

50 g, molecular biology grade cation exchange resin, sodium form, 1% cross-linkage, 200–400 dry mesh size, 75–150 µm wet bead size, ~3,500 MW limit, can be used for chromatography or molecular biology applications

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1432832
100 g, biotechnology grade cation exchange resin, sodium form, 1% crosslinkage, 100–200 dry mesh size, 150–300 µm wet bead size, ~3,500 MW limit

Documents

Documents

Number Description Options
LIT544
Instruction Manual, InstaGene™ Matrix, Rev G
LIT237
Instruction Sheet, Chelex 100 Iron Form Resin for Glyphosate Cleanup, Rev B
LIT200
Instruction Manual, Chelex 100 and Chelex 20 Chelating Ion Exchange Resin, Rev B