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, Phosphate Buffered Saline, 10X Solution, Fisher BioReagents™
Tamponi di uso comune
PBS, 10X Solution, Molecular Biology Grade
For biological research. Affymetrix/USB™ PBS, 10X Solution, Molecular Biology Grade is 0.2μm filtered and dispensed into durable, square nalgene bottles and upright carton.
Compresse PBS, tampone fosfato salino, 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!
MP Biomedicals™ Phosphate Buffered Saline Tablets (PBS)
Phosphate Buffered Saline Tablets (PBS) are a balanced salt mixture for easy PBS buffer preparation for a variety of applications, including reagent preparation, diluting cells for flow cytometry, and cell culture reagent.
Corning™ Soluzione tampone salino fosfato
Used alone or in combination with other agents for washing tissues and cells.
Corning™ Cell Culture Buffers: Dulbecco's Phosphate-Buffered Salt Solution 1X
With low endotoxin content.
Corning™ Cell Culture Phosphate Buffered Saline (1X)
With low endotoxin content. Without calcium and magnesium.
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.
Corning™ Mediatech™ Cell Culture Phosphate Buffered Saline (10X)
With low endotoxin content
HEPES (Fine White Crystals/Molecular Biology), Fisher BioReagents™
Commonly used buffering agent | CAS: 7365-45-9 | C8H18N2O4S | 238.30 g/mol
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.
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
Thermo Scientific Chemicals HEPES, 99%
CAS: 7365-45-9 Formula molecolare: C8H18N2O4S Molecular Weight (g/mol): 238.30 Numero MDL: MFCD00006158 InChI Key: JKMHFZQWWAIEOD-UHFFFAOYSA-N Sinonimo: 4-(2-Hydroxyethyl)-1-piperazineethanesulfonic acid PubChem CID: 23831 ChEBI: CHEBI:42334 IUPAC Name: 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid SMILES: OCCN1CCN(CCS(O)(=O)=O)CC1