EMAIL THIS PAGE TO A FRIEND
A4679 Sigma

Agarose

Low EEO, for Immunoelectrophoresis

Purchase

Properties

Related Categories Agarose, Core Bioreagents, Immunoelectrophoresis, Life Science Reagents for Protein Electrophoresis, Molecular Biology,
impurities   ≤7% water
EEO   0.09-0.13
mp   88 °C ( +- 1.5 at a 1.5% gel)
transition temp   gel point 34-38 °C
gel strength   ≥1200 g/cm2 (1% gel)
anion traces   sulfate (SO42-): ≤0.20%
application(s)   electrophoresis
foreign activity   DNase and RNase free

Description

Analysis Note

The following is a list of properties associated with our agaroses:
Sulfate content - used as an indicator of purity, since sulfate is the major ionic group present.
Gel strength - the force that must be applied to a gel to cause it to fracture.
Gel point - the temperature at which an aqueous agarose solution forms a gel as it cools. Agarose solutions exhibit hysteresis in the liquid-to-gel transition - that is, their gel point is not the same as their melting temperature.
Electroendosmosis (EEO) - a movement of liquid through the gel. Anionic groups in an agarose gel are affixed to the matrix and cannot move, but dissociable counter cations can migrate toward the cathode in the matrix, giving rise to EEO. Since electrophoretic movement of biopolymers is usually toward the anode, EEO can disrupt separations because of internal convection.

Application

Agarose is the most popular medium for immunoelectrophoresis because of the large pore size for rapid diffusion and for low background staining by Coomassie Blue G stain. The low EEO and high gel strength is specifically selected and tested for immunoelectrophoresis and immunodiffusion.

Packaging

50, 100, 500 g in poly bottle

Preparation Note

Gel Preparation:
1. Prepare a 1% agarose solution (sufficient for 10 gels 85 mm x 100 mm, 1-1.5 mm thick) by mixing 1.5 g agarose (Catalog No. A4679) in 150 mL of prepared barbital buffer and heat in a boiling water bath until completely dissolved.
2. To prepare one gel, pour 14 mL of agarose solution onto the hydrophilic side of a level, well supported 85 mm x 100 mm sheet of Electrophoresis Film for Agarose Gels (Catalog No. E0264). Pour from the center of the sheet toward its edges forming an even layer of agarose 1-1.5 mm thick.
3. Allow the gels to harden for one hour at 4 °C before using or store at 0-5 °C in an appropriate, plastic wrapped container.

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.




Detect Your Unseen Protein
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles

Articles

Nancy-520 for DNA Detection and Quantitation

Nancy-520 is a fluorescent stain for double stranded DNA (dsDNA) on agarose electrophoresis gels, with higher sensitivity than ethidium bromide and an easy, fast, and robust staining procedure. It is...
Monika Baeumle
BioFiles 2009, 4.1, 4.
Keywords: Catalytic combustion detector, Electrophoresis

Related Content

Agarose Selection Guide

Agarose Selection Guide – Click on the Product Number to Purchase Specialty Agarose – Click on the Product Number to Purchase
Keywords: Cell culture, Electrophoresis, Immunodiffusion, Immunoelectrophoresis, Molecular biology, Protein electrophoresis, Separation

Peer-Reviewed Papers
15

References

Set your institution to view full text papers.
Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?