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
TE Buffer, Tris-EDTA, 100X Solution, pH 8.0, Molecular Biology, Fisher BioReagents™
Tris Hydrochloride, 1M Solution (pH 7.5/Mol. Biol.), Fisher BioReagents™
CAS: 77-86-1 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
HEPES Sodium Salt (White Powder), Fisher BioReagents
CAS: 75277-39-3 Molecular Formula: C8H17N2NaO4S Molecular Weight (g/mol): 260.28 MDL Number: MFCD00036463 InChI Key: RDZTWEVXRGYCFV-UHFFFAOYSA-M PubChem CID: 2724248 ChEBI: CHEBI:46758 IUPAC Name: sodium 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethane-1-sulfonate SMILES: [Na+].OCCN1CCN(CCS([O-])(=O)=O)CC1
Invitrogen™ TAE (10X), RNase-free
Molecular biology grade, Invitrogen 10X TAE is supplied in a 1 L bottle. The buffer is certified RNase-free, economical, and ready-to-use.
R&D Systems™ ELISA Plate-coating Buffer
ELISA Plate-coating Buffer from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.
Gibco™ DPBS, no calcium, no magnesium
Dulbecco's Phosphate-Buffered Saline (DPBS) is a balanced salt solution used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue, diluting cells for counting, and preparing reagents.
Gibco™ HEPES (1 M)
Gibco HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) is a zwitterionic organic chemical buffering agent commonly used in cell culture media. It is membrane impermeable, relatively stable, and has limited interference in key processes.
Thermo Scientific Chemicals ADA, 99%, for biochemistry
CAS: 26239-55-4 Molecular Formula: C6H10N2O5 Molecular Weight (g/mol): 190.155 MDL Number: MFCD00008031 InChI Key: QZTKDVCDBIDYMD-UHFFFAOYSA-N Synonym: N-(2-Acetamido)iminodiacetic acid,N-(Carbamoylmethyl)iminodiacetic acid PubChem CID: 117765 ChEBI: CHEBI:43960 IUPAC Name: 2-[(2-amino-2-oxoethyl)-(carboxymethyl)amino]acetic acid SMILES: C(C(=O)N)N(CC(=O)O)CC(=O)O
Invitrogen™ TE, pH 7.0, RNase-free
Invitrogen TE buffer is a commonly recommended storage solution for RNA samples. 10 mM Tris-HCl, 1 mM EDTA, pH 7.0 is in nuclease-free, ultrapure water.
Invitrogen™ 10X TBE (powder)
Invitrogen 10X TBE (Tris-Borate-EDTA Buffer) is thoroughly tested for RNase and DNase contamination, making it ideal for use in sensitive application.
Gibco™ HBSS, calcium, magnesium
Hanks' Balanced Salt Solution (HBSS) is used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue, diluting cells for counting, and preparing reagents.
Gibco™ HBSS (10X), calcium, magnesium, no phenol red
Hanks' Balanced Salt Solution (HBSS) is used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue samples, diluting cells for counting, and preparing reagents.
Gibco™ DPBS, powder, no calcium, no magnesium
Dulbecco's Phosphate-Buffered Saline (DPBS) is a balanced salt solution used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue, diluting cells for counting, and preparing reagents.
Gibco™ PBS (10X), pH 7.4
Phosphate-buffered saline (PBS) is a balanced salt solution that is used for a variety of cell culture applications, such as washing cells before dissociation, transporting cells or tissue samples, diluting cells for counting, and preparing reagents.