Buffers
Buffers maintain their pH when small amounts of strong acids or bases are added. In biology, buffer solutions are used to provide a constant pH environment for biochemical processes. The pH often changes the environments of tissues and cells and can alter the activity of biomolecules. Buffers maintain the correct pH for proteins and oligonucleotides, and are especially important for techniques like electrophoresis.
Commonly used buffers in life science research share some of these characteristics:
- A pKa value between 6.0 and 8.0
- High water solubility
- Minimal changes due to temperature and concentration
- Limited effects due to ionic or salt composition of the solution
Browse our comprehensive selection of buffers including common buffers tris(hydroxymethyl)aminomethane (tris) and 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES).
Tris-Glycine Buffer
Tris-Glycine Buffer
Water
Water
Magnesium Chloride
Magnesium Chloride
Phenol, Saturated Solution, Ph 4.5
Phenol, Saturated Solution, Ph 4.5
Phenol : Chloroform Saturated Solution, Ph 5.2
Phenol : Chloroform Saturated Solution, Ph 5.2
Phenol:Chloroform Saturated Solution, Ph 6.7
Phenol:Chloroform Saturated Solution, Ph 6.7
Pipes
Pipes
Glycine
Glycine
Ammonium Acetate
Ammonium Acetate
Bicine
Bicine
Bis-Tris
Bis-Tris
TAE 50X BUFFER--N/H
Buffer for Electrophoresis.
Urea, Ultra-Pure (1lb Size)
Urea is the principal end product of nitrogen metabolism in most mammals, formed by the enzymatic reactions of the Kreb's cycle.