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
Sigma Aldrich Fine Chemicals Biosciences CHES | 103-47-9 | MFCD00003835 | 1kg
CHES | Purity: 99% | Mol Wt: 207.29 | 103-47-9 | MFCD00003835 | 1kg
Boston Bioproducts Inc Tris Buffered Saline, TBS (20X, for Western Blot Washing) - 1L
The Tris Buffered Saline (TBS) is an isotonic non-toxic buffer solution used commonly in biochemical applications. Tris maintains a stable pH range typically between 7.4 to 8.0 while NaCl regulates osmotic balance via its elected concentration. Tris maintains a stable pH range typically between 7.4 to 8.0 while NaCl regulates osmotic balance via its elected concentration. This TBS Solution is formulated at a 20X concentration, and is useful for washing in Western Blotting.
Boston Bioproducts Inc Tris Buffered Saline, TBS (10X, pH 7.4) - 4L
The Tris Buffered Saline (TBS) is an isotonic non-toxic buffer solution used commonly in biochemical immunoassay as a wash buffer. Tris maintains a stable pH range typically between 7.4 to 8.0 while NaCl regulates osmotic balance via its elected concentration. Tris maintains a stable pH range typically between 7.4 to 8.0 while NaCl regulates osmotic balance via its elected concentration. This TBS Solution is formulated at a 10X concentration.
Sigma Aldrich Fine Chemicals Biosciences Phosphate Buffer Solution | 14265-44-2 | MFCD00145108 | 1 gal
Phosphate Buffer Solution | Mol Wt: 94.97 | 14265-44-2 | MFCD00145108 | 1 gal
Boston Bioproducts Inc Phosphate Buffered Saline-Tween 10X, 4 x 1 L bottles, 0.5% Tween-20, pH 7.4, liquid
Phosphate Buffered Saline-Tween 10X, 4 x 1 L bottles, 0.5% Tween-20, pH 7.4, liquid
Abcam Antigen Retrieval Buffer (100 x Tris-EDTA Buffer, pH 9.0), 250ML
Antigen retrieval 100X tris-EDTA buffer (pH 9.0) enables target retrieval in formalin-fixed, paraffin-embedded tissue sections in one step. - Cited in over 20 publications - Contains 5% tris, 5% tetrasodium ethylene diamine tetraacetate, 1.5% 2-butoxyethanol - Optimized for tris-EDTA buffer (pH 9.0) treated antibodies - Contains detergent for paraffin emulsification
The product is subject to the following: Abcam Restricted Use Statement
Boston Bioproducts Inc HEPES Buffer (1 M, pH 7.4, pH Adjusted with KOH) - 500ml
The HEPES [4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid)] Buffer is a versatile Good's zwitterionic buffering agent widely used in various applications in biochemistry and molecular biology. It maintains a stable pH in the range of 6.8 to 8.2, making it ideal for various applications at physiological pH, including cell culture, protein purification, isoelectric focusing, enzyme studies, bioprocessing, and live cell imaging. This buffer is adjusted with KOH.
United States Biological Corporation Tris Base Ultrapure, 77-86-1, MFCD00004679, 5kg
Molecular Formula C₄H₁₁NO₃, Purity ≥99.9%, Molecular Biology Grade, Molecular Weight 121.14, Tris is one of the most widely used buffers in molecular biology and cell culture due to its low toxicity, stability and buffering capacity.
Boston Bioproducts Inc HEPES Buffer (1 M, pH 7.5) - 500ml
The HEPES [4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid)] Buffer is a versatile Good's zwitterionic buffering agent widely used in various applications in biochemistry and molecular biology. It maintains a stable pH in the range of 6.8 to 8.2, making it ideal for various applications at physiological pH, including cell culture, protein purification, isoelectric focusing, enzyme studies, bioprocessing, and live cell imaging.
Sigma Aldrich Fine Chemicals Biosciences Phosphate buffered saline | MFCD00131855 | 5 x 10 pkg
Phosphate buffered saline | MFCD00131855 | 5 x 10 pkg
Sigma Aldrich Fine Chemicals Biosciences Trizma base, 77-86-1, MFCD00004679, 1 kg
Linear Formula: NH2C(CH2OH)3, Molecular Weight: 121.14, BioPerformance Certified, meets EP, USP testing specifications, cell culture tested, ≥99.9% (titration), Synonym: 2-Amino-2-(hydroxymethyl)-1,3-propanediol, THAM, Tris base, Tris(hydroxymethyl)aminomethane, Trometamol. Tris is an established basimetric standard and buffer used in biochemistry and molecular biology.