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
PBS Tablets, Phosphate Buffered Saline, Fisher BioReagents™
Phosphate Buffered Saline Tablets, CAS Number-7647-14-5, 7447-40-7, 100 tablets, Clear, Gray, White, 5/8 in., 600 SEC max., CAUTION!
Corning™ Cell Culture Buffers: Dulbecco's Phosphate-Buffered Salt Solution 1X
With low endotoxin content.
Gibco™ PBS, pH 7.4
Gibco PBS, pH 7.4, is a balanced salt solution ideal for cell culture applications. It lacks calcium, magnesium, and phenol red, preventing cell adhesion and assay interference. Trusted for quality, Gibco PBS ensures reliable results in cell washing, transport, and reagent preparation.
Fisher Chemical HEPES Buffer, 1M Solution, pH 7.3 (Molecular Biology), Fisher BioReagents™
Commonly used buffering agent
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.
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
Corning™ Cell Culture Phosphate Buffered Saline (1X)
With low endotoxin content. Without calcium and magnesium.
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.
Gibco™ DPBS (10X), 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 samples, diluting cells for counting, and preparing reagents.
Fisher Chemical TAE Buffer, Tris-Acetate-EDTA, 50X Solution, Electrophoresis, Fisher BioReagents™
Tris-Acetate-EDTA, CAS Number-77-86-1, 60-00-4, 6850-28-8, TAE, 4L, Gray, Tris (24%), Acetic Acid (5.0%), and EDTA (<2%)., DNase free, Pass Test, Filtered through a 0.2-micron filter., Electrophoresis, 50X Solution, Poly CUBE, Liquid, Protease free, DNase-, RNase- and Protease-Free, RT
Invitrogen™ PBS - Phosphate-Buffered Saline (10X) pH 7.4, RNase-free
PBS (phosphate buffered saline) is a pH-adjusted blend of ultrapure-grade phosphate buffers and saline solutions.
Fisher Chemical TBE Buffer, Tris-Borate-EDTA, 10X Solution, Electrophoresis, Fisher BioReagents™
CAS: 10043-35-3 Synonym: TBE