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
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
HEPES (Fine White Crystals/Molecular Biology), Fisher BioReagents™
Commonly used buffering agent | CAS: 7365-45-9 | C8H18N2O4S | 238.30 g/mol
TBE Buffer, Tris-Borate-EDTA, 10X Solution, Electrophoresis, Fisher BioReagents™
CAS: 10043-35-3 Synonyme: TBE
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
Tris (Tromethamine) (Granular/USP), Fisher Chemical™
CAS: 77-86-1 Formule moléculaire: C4H11NO3 Poids moléculaire (g/mol): 121.136 Numéro MDL: MFCD00004679 Clé InChI: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonyme: Trishydroxymethylaminomethane,Tris Buffer,Tris,THAM,Trizma™,2-Amino-2-(hydroxymethyl)-1,3-propanediol,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
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!
HEPES Buffer, 1M Solution, pH 7.3 (Molecular Biology), Fisher BioReagents™
Commonly used buffering agent
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.
Tris Hydrochloride, 1M Solution (pH 7.5/Mol. Biol.), Fisher BioReagents™
CAS: 77-86-1 Formule moléculaire: C4H11NO3 Poids moléculaire (g/mol): 121.136 Clé InChI: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonyme: Tris-HCl CID PubChem: 6503 ChEBI: CHEBI:9754 Nom IUPAC: 2-amino-2-(hydroxymethyl)propane-1,3-diol SMILES: C(C(CO)(CO)N)O
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
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 8.0/Mol. Biol.), Fisher BioReagents™
CAS: 77-86-1 Formule moléculaire: C4H11NO3 Poids moléculaire (g/mol): 121.136 Clé InChI: LENZDBCJOHFCAS-UHFFFAOYSA-N Synonyme: Tris-HCl CID PubChem: 6503 ChEBI: CHEBI:9754 Nom IUPAC: 2-amino-2-(hydroxymethyl)propane-1,3-diol SMILES: C(C(CO)(CO)N)O