Analytical Grade Cation Exchange Resin

Overview

Specifications

Wet Mesh and Equivalent Diameters

Analytical Grade Resin Selection Guide

Various Counterions

Resin Conversion

These analytical grade cation exchange resins are purified to remove both organic and inorganic impurities. These resin types are available as both strong and weak cation and anion exchangers as well as mixed-bed ion exchangers.

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Description

AG^®, AG-MP, Bio-Rex^®, and Chelex^® Resins

AG (Analytical grade) resins are extensively purified to remove both organic and inorganic impurities. Resins are sized to consistently give narrow wet mesh ranges, which provide high resolution and excellent reproducibility. AG resins are available as both strong and weak cation and anion exchangers and as mixed-bed ion exchangers. Many are available in several ionic forms and can be converted from one form to another. AG resins are primarily used for the separation of low molecular weight compounds such as inorganic ions, organic acids, nucleic acids, or carbohydrates.

AG 50W resin, AG MP-50 macroporous resin, and biotechnology grade AG 50W all offer strong acid cation exchange capabilities. The AG resin has been exhaustively sized, purified, and converted to provide accurate, reproducible analytical results. Both resins are useful for single step purification methods, for concentrating cationic solutes, and for analytical determination of various mixed cationic solutes. Both AG 50W and MP-50 have sulfonic acid functional groups attached to a styrene divinylbenzene copolymer lattice. The amount of resin crosslinking determines the bead pore size: a resin with a lower crosslinkage has a more open structure that is more permeable to high molecular weight substances than a highly crosslinked resin.

AG MP-50 resin is the macroporous equivalent of AG 50W resin. Its effective surface area approximates 35 square meters per dry gram, or 30–35% porosity.

Bio-Rex 70 resin has a carboxylic acid functional group attached to an acrylic matrix. It is a macroreticular resin with a high capacity for high molecular weight compounds and does not denature proteins. It is used for purification and fraction of peptides and proteins.

Chelex 100 resin contains paired iminodiacetate ions coupled to a styrene divinylbenzene support. They are unique chelating resins that bind polyvalent cations with high selectivity and are used to remove metal ions from samples and buffers.

Molecular Biology and Biotechnology grade resins

Molecular biology grade resins, chemically identical to the equivalent analytical grade resins, are certified to be free of endo- and exonuclease activities and ligase inhibitors.

Biotechnology grade resins have undergone special processing and contain fewer than 100 microorganisms/g.

Larger volumes and special packaging for industrial applications are available on request.

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(Discontinued) AG^® 50W-X2 Cation Exchange Resin, analytical grade, 50–100 mesh, hydrogen form, 500 g

1421231

500 g, analytical grade cation exchange resin, hydrogen form, 2% crosslinkage, 50–100 dry mesh size, 300–1,180 µm wet bead size, ~2,700 MW limit

(Discontinued) AG^® 50W-X2 Cation Exchange Resin, analytical grade, 100–200 mesh, hydrogen form, 500 g

1421241

500 g, analytical grade cation exchange resin, hydrogen form, 2% crosslinkage, 100–200 dry mesh size, 106–300 µm wet bead size, ~2,700 MW limit

(Discontinued) AG^® 50W-X2 Cation Exchange Resin, analytical grade, 200–400 mesh, hydrogen form, 500 g

1421251

500 g, analytical grade cation exchange resin, hydrogen form, 2% crosslinkage, 200–400 dry mesh size, 75–180 µm wet bead size, ~2,700 MW limit

(Discontinued) AG^® 50W-X4 Cation Exchange Resin, analytical grade, 50–100 mesh, hydrogen form, 500 g

1421331

500 g, analytical grade cation exchange resin, hydrogen form, 4% crosslinkage, 50–100 dry mesh size, 180–425 µm wet bead size, ~1,400 MW limit

(Discontinued) AG^® 50W-X4 Cation Exchange Resin, analytical grade, 100–200 mesh, hydrogen form, 500 g

1421341

500 g, analytical grade cation exchange resin, hydrogen form, 4% crosslinkage, 100–200 dry mesh size, 106–250 µm wet bead size, ~1,400 MW limit

(Discontinued) AG^® 50W-X4 Cation Exchange Resin, analytical grade, 200–400 mesh, hydrogen form, 500 g

1421351

500 g, analytical grade cation exchange resin, hydrogen form, 4% crosslinkage, 200–400 dry mesh size, 63–150 µm wet bead size, ~1,400 MW limit

(Discontinued) AG^® 50W-X8 Cation Exchange Resin, analytical grade, 20–50 mesh, hydrogen form, 500 g

1421421

500 g, analytical grade cation exchange resin, hydrogen form, 8% crosslinkage, 20–50 dry mesh size, 300–1,180 µm wet bead size, ~1,000 MW limit

(Discontinued) AG^® 50W-X8 Cation Exchange Resin, analytical grade, 50–100 mesh, hydrogen form, 500 g

1421431

500 g, analytical grade cation exchange resin, hydrogen form, 8% crosslinkage, 50–100 dry mesh size, 180–425 µm wet bead size, ~1,000 MW limit

(Discontinued) AG^® 50W-X8 Cation Exchange Resin, analytical grade, 100–200 mesh, hydrogen form, 500 g

1421441

500 g, analytical grade cation exchange resin, hydrogen form, 8% crosslinkage, 100–200 dry mesh size, 106–250 µm wet bead size, ~1,000 MW limit

(Discontinued) AG^® 50W-X8 Cation Exchange Resin, analytical grade, 200–400 mesh, hydrogen form, 500 g

1421451

500 g, analytical grade cation exchange resin, hydrogen form, 8% crosslinkage, 200–400 dry mesh size, 63–150 µm wet bead size, ~1,000 MW limit

(Discontinued) AG^® 50W-X12 Cation Exchange Resin, analytical grade, 100–200 mesh, hydrogen form, 500 g

1421641

500 g, analytical grade cation exchange resin, hydrogen form, 12% crosslinkage, 100–200 dry mesh size, 106–250 µm wet bead size, ~400 MW limit

(Discontinued) AG^® 50W-X12 Cation Exchange Resin, analytical grade, 200–400 mesh, hydrogen form, 500 g

1421651

500 g, analytical grade cation exchange resin, hydrogen form, 12% crosslinkage, 200–400 dry mesh size, 53–106 µm wet bead size, ~400 MW limit

(Discontinued) Bio-Rex™ 70 Cation Exchange Resin, analytical grade, 20–50 mesh, sodium form, 500 g

1425822

500 g, cation exchange resin, sodium form, macroreticular, 20–50 dry mesh size, 300–1,180 µm wet bead size, >1,000,000 MW limit

(Discontinued) Bio-Rex™ 70 Cation Exchange Resin, analytical grade, 50–100 mesh, sodium form, 500 g

1425832

500 g, cation exchange resin, sodium form, macroreticular, 50–100 dry mesh size, 150–300 µm wet bead size, >1,000,000 MW limit

(Discontinued) Bio-Rex™ 70 Cation Exchange Resin, analytical grade, 100–200 mesh, sodium form, 500 g

1425842

500 g, cation exchange resin, sodium form, macroreticular, 100–200 dry mesh size, 75–150 µm wet bead size, >1,000,000 MW limit

(Discontinued) Bio-Rex™ 70 Cation Exchange Resin, analytical grade, 200–400 mesh, sodium form, 500 g

1425852

500 g, cation exchange resin, sodium form, macroreticular, 200–400 dry mesh size, 45–75 µm wet bead size, >1,000,000 MW limit

(Discontinued) AG^® 50W-X8 Cation Exchange Resin, Molecular Biology Grade, 200–400 mesh, hydrogen form, 100 g

1431451

100 g, molecular biology grade cation exchange resin, sodium form, 8% crosslinkage, 200–400 dry mesh size, 63–150 µm wet bead size, ~1,000 MW limit

(Discontinued) AG^® MP-50 Cation Exchange Resin, analytical grade, 100–200 mesh, hydrogen form, 500 g

1430841

500 g, analytical grade cation exchange resin, hydrogen form, macroporous, 100–200 dry mesh size, 75–150 µm wet bead size, >1,000,000 MW limit

(Discontinued) Chelex 100 Chelating Resin, molecular biology grade, 200–400 mesh, sodium form, 50 g

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