Criterion™ XT Bis-Tris Precast Gels by Bio-Rad

Criterion XT precast gels are formulated at a near-neutral pH, significantly delaying acrylamide hydrolysis compared to traditional Laemmli systems. Their chemical composition allows maximum stability.


Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product image
Criterion XT Bis-Tris Precast Gels
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Criterion™ XT gels are ideal for vertical midi protein gel electrophoresis, are designed to work with optimized sample and running buffers, and have an extended shelf life. Like traditional Laemmli systems, Criterion XT gels use discontinuous buffer ion fronts that form moving boundaries to stack and then separate proteins.

Features and Benefits

  • 12 month shelf life
  • Formulated using a Bis-Tris-HCl buffer system (pH 6.4) to separate proteins by molecular weight
  • Select from two running buffers to expand the separation capability of a single Bis-Tris gel type
  • Near-neutral pH significantly delays acrylamide hydrolysis as compared to traditional Laemmli systems
  • Run 2-D gels in less than a day

Applications and Uses

  • Polyacrylamide gel electrophoresis (PAGE or SDS-PAGE)
  • 2-D gel electrophoresis
  • Screen new samples
  • Evaluate sample preparation conditions

To further refine the resolution range, refer to the Protein Migration Chart for different acrylamide concentrations appropriate for your proteins of interest.

Product Models Information


Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

10% Criterion™ XT Bis-Tris Protein Gel, 11 cm IPG/prep+1 well, 550 µl

3450115

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Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

10% Criterion™ XT Bis-Tris Protein Gel, 12+2 well, 45 µl

3450111

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Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

10% Criterion™ XT Bis-Tris Protein Gel, 18 well, 30 µl

3450112

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Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

10% Criterion™ XT Bis-Tris Protein Gel, 26 well, 15 µl

3450113

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Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

12% Criterion™ XT Bis-Tris Protein Gel, 11 cm IPG/prep+1 well, 550 µl

3450121

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Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

12% Criterion™ XT Bis-Tris Protein Gel, 12+2 well, 45 µl

3450117

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Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

12% Criterion™ XT Bis-Tris Protein Gel, 18 well, 30 µl

3450118

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Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

12% Criterion™ XT Bis-Tris Protein Gel, 26 well, 15 µl

3450119

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Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

12% Criterion™ XT Bis-Tris Protein Gel, Prep+2 well, 700 µl

3450120

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Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

4–12% Criterion™ XT Bis-Tris Protein Gel, 11 cm IPG/prep+1 well, 550 µl

3450127

Buy Now


Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

4–12% Criterion™ XT Bis-Tris Protein Gel, 12+2 well, 45 µl

3450123

Buy Now


Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

4–12% Criterion™ XT Bis-Tris Protein Gel, 18 well, 30 µl

3450124

Buy Now


Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

4–12% Criterion™ XT Bis-Tris Protein Gel, 26 well, 15 µl

3450125

Buy Now


Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product thumbnail

4–12% Criterion™ XT Bis-Tris Protein Gel, Prep+2 well, 700 µl

3450126

Buy Now

Product Overview

Criterion™ XT Bis-Tris Precast Gels by Bio-Rad product image

Criterion™ XT Bis-Tris Precast Gels

Manufacturer Bio-Rad

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