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
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
HEPES (Fine White Crystals/Molecular Biology), Fisher BioReagents™
Commonly used buffering agent | CAS: 7365-45-9 | C8H18N2O4S | 238.30 g/mol
Tris Base (White Crystals or Crystalline Powder/Molecular Biology), Fisher BioReagents™
CAS: 77-86-1 Formule moléculaire: C4H11NO3 Poids moléculaire (g/mol): 121.136 Clé InChI: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonyme: Trimethylol Aminomethane,Tris(hydroxymethyl)aminomethane,2-Amino-2-(hydroxymethyl)-1,3-propanediol,THAM,Tris base,Trometamol CID PubChem: 6503 ChEBI: CHEBI:9754 Nom IUPAC: 2-amino-2-(hydroxymethyl)propane-1,3-diol SMILES: C(C(CO)(CO)N)O
TBE Buffer, Tris-Borate-EDTA, 10X Solution, Electrophoresis, Fisher BioReagents™
CAS: 10043-35-3 Synonyme: TBE
Phosphate Buffered Saline (PBS), 10X Powder, pH 7.4, Fisher BioReagents™
Phosphate Buffered Saline (PBS), 10X Powder provides a convenient way to make 1 L of 10X stock PBS solution.
Corning™ Cell Culture Phosphate Buffered Saline (1X)
With low endotoxin content. Without calcium and magnesium.
Tris-Glycine, 10X Solution (Electrophoresis), Fisher BioReagents™
TBS, Tris Buffered Saline, 10X Solution, pH 7.4, Molecular Biology, Fisher BioReagents™
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 (Small White Flakes/Molecular Biology), Fisher BioReagents
CAS: 1185-53-1 Formule moléculaire: C4H12ClNO3 Poids moléculaire (g/mol): 157.594 Clé InChI: QKNYBSVHEMOAJP-UHFFFAOYSA-N Synonyme: Tris(hydroxymethyl)aminomethane Hydrochloride CID PubChem: 93573 Nom IUPAC: 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydrochloride SMILES: C(C(CO)(CO)N)O.Cl
TBS, Tris Buffered Saline, 1X Solution, pH 7.4, Molecular Biology, Fisher BioReagents
Tris(hydroxymethyl)aminomethane (Cryst./Certified ACS), Fisher Chemical™
CAS: 77-86-1 Formule moléculaire: C4H11NO3 Poids moléculaire (g/mol): 121.136 Numéro MDL: MFCD00004679 Clé InChI: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonyme: 2-Amino-2-(hydroxymethyl)-1, 3-propanediol,Trimethylol Aminomethane,Tris Buffer,Tris,Trizma™,THAM,Tris base,Tris(hydroxymethyl)aminomethane,Trometamol CID PubChem: 6503 ChEBI: CHEBI:9754 Nom IUPAC: 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 Formule moléculaire: C8H17N2NaO4S Poids moléculaire (g/mol): 260.28 Numéro MDL: MFCD00036463 Clé InChI: RDZTWEVXRGYCFV-UHFFFAOYSA-M CID PubChem: 2724248 ChEBI: CHEBI:46758 Nom IUPAC: sodium 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethane-1-sulfonate SMILES: [Na+].OCCN1CCN(CCS([O-])(=O)=O)CC1
MOPS (Fine White Crystals/Molecular Biology), Fisher BioReagents™
CAS: 1132-61-2 Formule moléculaire: C7H15NO4S Poids moléculaire (g/mol): 209.26 Numéro MDL: MFCD00006183 Clé InChI: DVLFYONBTKHTER-UHFFFAOYSA-N Synonyme: 3-(4-Morpholino)propane sulfonic acid CID PubChem: 70807 ChEBI: CHEBI:44115 Nom IUPAC: 3-morpholin-4-ylpropane-1-sulfonic acid SMILES: [O-]S(=O)(=O)CCC[NH+]1CCOCC1