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
Invitrogen™ Novex™ Tris-Glycine SDS Running Buffer (10X)
Formulated for separation of proteins, in their denatured state, on Novex Tris-Glycine gels
Gibco™ PBS, pH 7.4 (flow cytometry grade)
Phosphate-Buffered Saline (PBS) is a balanced salt solution used for a variety of applications, including reagent preparation, diluting cells for flow cytometry and as a cell culture reagent.
Invitrogen™ Novex™ Tricine SDS Running Buffer (10X)
Novex Tricine SDS Running Buffer (10X) is formulated for separation of proteins in their denatured state on tricine gels.
Thermo Scientific™ Dry-blend Buffered Packs
Our quality control ensures that every pack of dry-blend buffers yields consistent solutions without weighing or pH adjustment. Simply empty contents of one foil envelope pack into a beaker, add appropriate solvents, and stir to dissolve.
Invitrogen™ NuPAGE™ MES SDS Running Buffer (20X)
Made with high-purity reagents and are strictly quality controlled
Thermo Scientific Chemicals TAE (50X), TRIS + acetate + EDTA
TAE (50X), TRIS + acetate + EDTA is a buffer composed of Tris, acetate, and EDTA components and is used in electrophoresis of nucleic acids in agarose and polyacrylamide gels.
Thermo Scientific Chemicals HEPES, 1.0M buffer soln., pH 7.5
CAS: 7365-45-9 Molecular Formula: C8H18N2O4S Molecular Weight (g/mol): 238.30 MDL Number: MFCD00006158 InChI Key: JKMHFZQWWAIEOD-UHFFFAOYSA-N PubChem CID: 23831 ChEBI: CHEBI:42334 SMILES: OCCN1CCN(CCS(O)(=O)=O)CC1
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Gibco™ CTS™ DPBS, without calcium chloride, without magnesium chloride
Gibco Cell Therapy Systems (CTS) DPBS is the classic Dulbecco's phosphate-buffered saline. This particular formulation lacks calcium, magnesium, and phenol red.
Invitrogen™ 20X Bolt™ MOPS SDS Running Buffer
Optimized for use with Bolt™ Bis-Tris Plus gels, and are available in a variety of formats
Gibco™ PBS, pH 7.2
Gibco PBS, pH 7.2, is a balanced salt solution widely used in various cell culture applications to maintain a stable pH and osmotic balance, making it ideal as a wash, transport, and dilution buffer.
Tris Base (White Crystals or Crystalline Powder/Triple-Crystallized), Fisher BioReagents™
For sensitive molecular biology, tissue culture, and electrophoresis methods | CAS: 77-86-1 | C4H11NO3 | 121.136 g/mol
Tris Hydrochloride, 1M Solution (pH 7.0/Mol. Biol.), Fisher BioReagents™
CAS: 77-86-1,7732-18-5,1185-53-1 Molecular Formula: C4H11NO3 Molecular Weight (g/mol): 121.136 InChI Key: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonym: Tris-HCl PubChem CID: 6503 ChEBI: CHEBI:9754 IUPAC Name: 2-amino-2-(hydroxymethyl)propane-1,3-diol SMILES: C(C(CO)(CO)N)O
MES (Fine White Crystals), Fisher BioReagents
CAS: 4432-31-9 Molecular Formula: C6H15NO5S Molecular Weight (g/mol): 213.248 InChI Key: MIIIXQJBDGSIKL-UHFFFAOYSA-N Synonym: 2-(4-Morpholino)ethane Sulfonic Acid,2-(N-Morpholino)ethanesulfonic acid hydrate PubChem CID: 16218417 IUPAC Name: 2-morpholin-4-ylethanesulfonic acid;hydrate SMILES: C1COCCN1CCS(=O)(=O)O.O