Merck
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T4415

Sigma-Aldrich

Tris-Borate-EDTA buffer

BioReagent, suitable for electrophoresis, 10× concentrate

Synonym(s):
TBE buffer
MDL number:
PubChem Substance ID:
NACRES:
NA.25

Quality Level

product line

BioReagent

form

solution

impurities

DNase and RNase, none detected

suitability

suitable for electrophoresis

SMILES string

OB(O)O.NC(CO)(CO)CO.OC(=O)CN(CCN(CC(O)=O)CC(O)=O)CC(O)=O

InChI

1S/C10H16N2O8.C4H11NO3.BH3O3/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20;5-4(1-6,2-7)3-8;2-1(3)4/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20);6-8H,1-3,5H2;2-4H

InChI key

OSBLTNPMIGYQGY-UHFFFAOYSA-N

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General description

TBE (Tris/Borate/EDTA) Buffer is commonly used in nucleic acid electrophoresis. This solution is effective under slightly basic conditions, which keeps DNA deprotonated, water-soluble, and protected from degradation. This concentrate can be easily diluted to 1x or 0.5x before use (with molecular biology grade water).

Application

Ready for use in gel electrophoresis after dilution to working concentrations.
Tris-Borate-EDTA buffer has been used for pulsed-field gel electrophoresis (PFGE).
TBE running buffer is the most commonly used buffer for DNA and RNA polyacrylamide gel electrophoresis. TBE is used with non-denaturing or denaturing (7 M urea) gels. It is also routinely used for DNA automated sequencing gel. TBE can also be used for agarose gels but is not recommended for preparative gels for recovery of nucleic acids.
Dilution of the TBE stock concentrates to a 1× TBE running buffer results in a buffer containing 89 mM Tris-borate and 2 mM EDTA, pH 8.3. The 5× or 10× stocks may also be added to an acrylamide/bis-acrylamide stock solution for making the PAGE gel. Applied voltages of less than 5 V/cm (distance between the electrodes of the unit) are recommended for maximum resolution.

Packaging

The 4L, 10L and 20L sizes are supplied in dispenser with a spigot.

Preparation Note

Prepared with 18 megohm water
Prepared with Biotechnology Performance Certified Trizma base (Product Code T6066) and Molecular Biology Reagents boric acid (Product Code B6768) and EDTA disodium salt (Product Code E5134).

Other Notes

TBE buffer is prone to precipitation over time. Precipitation generally will not adversely affect performance.

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Hazard Classifications

Repr. 1B

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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