Life Science Buffers
Balanced salt solutions and powders used for molecular, protein, nucleic acid, and cell biology applications including cell culture, electrophoresis, ELISA, and chromatography processes; available in a variety of formulations and grades.
Buffer solutions serve to keep pH (acidity or alkalinity) nearly constant in a variety of chemical and biological applications. For example, a bicarbonate buffer helps maintain the pH of blood, a buffered saline maintains cellular contents at a consistent pH level, and buffers help maintain a narrow pH range for enzymes to function correctly.
Most biological samples used in research are kept at a pH of about 7.4. Common biological buffers used for tissue culture include Dulbeccos phosphate buffered saline (PBS), Tris base, HEPES, MOPS, PIPES, and other formulations developed for specific cell lines or applications. Most buffers used in cell culture are also DNase-, RNase-, and protease-free.
The choice of buffer for a particular biological reaction or site depends on several factors:
- Temperature
- Desired or target pH
- Buffer toxicity (to the system)
- Buffer interactions with other system components
Teknova 1M Ammonium Sulfate, 10mM Tris-HCl pH 8.0. 500mL, Sterile. 4 Pack.
1M Ammonium Sulfate,10mM Tris-HCl
ILEX LIFE SCIENCES LLC PAN-Biotech Dulbecco's Phosphate-Buffered Saline (DPBS), w: Ca and Mg (500 ml)
DPBS, WITH: Ca and Mg. QUANTITY: 500 ml. MANUFACTURED BY: Pan-Biotech (Germany). STORAGE: 2 to 8 degrees Celsius. DESCRIPTION: Dulbecco's Phosphate-Buffered Saline (DPBS) with calcium chloride and magnesium chloride. The main purpose of buffered salt solutions is the maintenance of pH and osmolarity in cell culture applications as well as providing essential inorganic ions. These solutions are usually used for washing tissues and cells. Often they are combined with other agents in cell and tissue treatment.
Boston Bioproducts Inc Tris-Base (2 M, pH > 10.0) - 250ml
Tris-base is a widely used biological buffer in various research applications in biochemistry, molecular biology, and cell biology. The buffering capabilities of Tris-base are effective in the pH range of 7.0-9.0, making it suited for various biological applications. This buffer is widely used in protocols for DNA and RNA extraction, in situ hybridization, protein extraction from cells, in agarose gel electrophoresis, polyacrylamide gel electrophoresis and as a wash buffer in Western blotting.
Teknova Assay Diluent. 1000mL, Sterile. 2 pack.
Phosphate-buffered saline (PBS) is a salt solution that is commonly used in physiological and biochemical experiments. It can be used to maintain pH neutrality or to buffer against changes in pH in order to provide optimal conditions for cellular growth and function. The buffering range is between pH 6.8 and 7.4.
Teknova 1M Tris-HCl, pH 9.2. 1000mL, Sterile. 2 pack.
Tris (tris(hydroxymethyl)aminomethane) is used as a component ofbuffer solutions, especially for solutions ofnucleic acids. The useful buffer range for tris (pH 7–9) is similar to the pH of most living organisms. This, and its low cost, make tris one of the most common buffers in the biology/biochemistry laboratory.
Teknova 20X TBS with 1% Tween-20, pH 7.5. (2M Tris, 3M NaCl) 1000mL, Sterile. 2 pack.
2M Tris,3M Sodium Chloride,1.0% Tween-20
Teknova TE Buffer with 0.1 mM EDTA, pH 7.6, RNAse/DNAse Tested, 500mL, Sterile. 4 pack.
TE buffer is a salt solution that is commonly used to resuspend (or dilute) DNA and RNA. Composed of Tris base and EDTA, these molecules work together to maintain pH and prevent nucleic acids from degradation.
Teknova 1M HEPES, pH 6.8. 1000mL, Sterile 2 pack.
HEPES solution is a Goods buffer that is commonly used in cell culture and biochemical applications. It is well known for its ability to maintain pH level, making it an essential part of any experiment that requires a stable pH. It has a buffering range of 6.8 - 8.2.
Dojindo Molecular Technologies Inc BES (100G), Good's buffer, CAS: 10191-18-1, pka=7.15, Active pH 6.6-8, made in Japan
In biological experiments, it is important to maintain the pH of the solutions used. Buffers, which are mixtures of weak acids and their appropriate conjugate bases, are commonly used in these experiments. Most biological reactions occur when the buffer is at its effective pH range of 6 to 8. Furthermore, the acids and bases used in the biological reaction should not produce chelates with metal ions. For these reasons, Dr. Good developed several aminoethane and aminopropane sulfonic acids that are now widely used for biological research and analysis. Goods buffers have the following characteristics: 1) High water-solubility. 2) Low cell membrane permeability. 3) Consistent acid-base dissociation constants. 4) Low metal chelating capability. 5) High chemical stability. 6) Low absorption spectra in UV and visible regions.
Teknova 1M Tris-HCl, pH 9.0. 500 mL, Sterile. 4 pack.
Tris (tris(hydroxymethyl)aminomethane) is used as a component ofbuffer solutions, especially for solutions ofnucleic acids. The useful buffer range for tris (pH 7–9) is similar to the pH of most living organisms. This, and its low cost, make tris one of the most common buffers in the biology/biochemistry laboratory.
Teknova 1M Tris-HCl, pH 8.3. 500mL, Sterile. 4 pack.
Tris (tris(hydroxymethyl)aminomethane) is used as a component ofbuffer solutions, especially for solutions ofnucleic acids. The useful buffer range for tris (pH 7–9) is similar to the pH of most living organisms. This, and its low cost, make tris one of the most common buffers in the biology/biochemistry laboratory.
Teknova 1M Tris-HCl, pH 10.2. 1000mL, Sterile. 2 pack.
Tris (tris(hydroxymethyl)aminomethane) is used as a component ofbuffer solutions, especially for solutions ofnucleic acids. The useful buffer range for tris (pH 7–9) is similar to the pH of most living organisms. This, and its low cost, make tris one of the most common buffers in the biology/biochemistry laboratory.