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
Abcam Salsolinol hydrochloride, Dopamine derivative, 5G
MW 215.68 g/mol, Purity >99%. Dopamine (ab120565) derivative. Putative endogenous opioid system-activating factor. Antagonizes L-DOPA-mediated hyperactivity. Shows central effects in vivo. .
The product is subject to the following: Abcam Restricted Use Statement
Sigma Aldrich Fine Chemicals Biosciences CHES 99.0 (titration), 103-47-9, MFCD00003835
CHES 99.0 (titration)
Bioworld Tris-Acetate-SDS Running Buffer (10X), 500 mL
TRIS-Acetate-SDS Running Buffer (10X) All bioWORLD running buffers are prepared with high quality reagents. Technical Information:Dilute with deionized water to make 1X. 10X concentration1X contains: 50mM Tris base, 50mM Tricine, 3.5mM SDS pH 8.24
Sigma Aldrich Fine Chemicals Biosciences Tris-Borate-EDTA buffer working solution, MFCD00236358
Tris-Borate-EDTA buffer working solution
Sigma Aldrich Fine Chemicals Biosciences HEPES 99.5 (titration), 7365-45-9, MFCD00006158
HEPES 99.5 (titration)
Sigma Aldrich Fine Chemicals Biosciences HEPES hemisodium salt | 103404-87-1 | | 25g
HEPES hemisodium salt | Purity: 99% | MW: 249.3 | 103404-87-1 | 25g
Sigma Aldrich Fine Chemicals Biosciences Tricine | 5704-04-1 | MFCD00004277 | 100 g
Tricine | Purity: ≥99% | Mol Wt: 179.17 | 5704-04-1 | MFCD00004277 | 100 g
Sigma Aldrich Fine Chemicals Biosciences Ethylenediaminetetraacetic acid purified grade, >=98.5%, powder | 60-00-4 | MFCD00003541 | 500G
Ethylenediaminetetraacetic acid purified grade, >=98.5%, powder | Purity: >=98.5% | Mol Wt: 292.24 | 60-00-4 | MFCD00003541 | 500G
Sigma Aldrich Fine Chemicals Biosciences BES >=99.0% (titration) | 10191-18-1 | MFCD00007533 | 25G
BES >=99.0% (titration) | Purity: >=99.0% (titration) | Mol Wt: 213.25 | 10191-18-1 | MFCD00007533 | 25G
Sigma Aldrich Fine Chemicals Biosciences Dulbeccos Phosphate Buffer
Dulbecco Phosphate Buffered Saline (DPBS) is a balanced salt SOLUTIONon.
Pfanstiehl Inc Tris Base (Tromethamine) High Purity, Low Endotoxin, Low Metals, USP, EP, BP, ChP (T-153) 100G GMP, Multi-compendial CAS: 77-86-1 Injectable Excipient Grade
Pfanstiehl Tris Base, High Purity, Low Endotoxin, Low Metals, USP, EP, BP, ChP is a multi-compendial buffer component that has been specifically designed and formulated to remove impurities such as endotoxin, trace metals, and nitrosamines. Manufactured in the USA under ICH-Q7 cGMP conditions, Pfanstiehl Tris Base meets parenteral (injectable) excipient grade standards, making it ideal for pharmaceutical, biologic, and vaccine bioprocessing and formulation. Pfanstiehl Brand Tris Base is compliant with USP (United States Pharmacopoeia) EP (European Pharmacopoeia), BP (British Pharmacopeia) and ChP (Chinese Pharmacopeia) Compendial, U.S.P. , cGMP , pharmaceutical grade , multicompendial
Gold Biotechnology Inc MOPS, Sodium Salt 1 kg
MOPS sodium salt is a buffering agent used in biochemistry and molecular biology that was selected and described by Good et al. It is a zwitterionic, morpholinic buffer that is useful for a pH range of 6.5 – 7.9 and commonly used for cell culture media, as a running buffer in electrophoresis and for protein purification in chromatography. MOPS lacks the ability to form a complex with most metal ions and is recommended for use as a non-coordinating buffer in solutions with metal ions. MOPS is often used in buffered culture media for bacteria, yeast, and mammalian cells. MOPS is regarded as an excellent buffer for use in separating RNA in agarose gels. It is recommended to sterilize MOPS buffers by filtration rather than with autoclave due to the unknown identity of yellow degradation products that occur after sterilization of MOPS with autoclave. It is suitable for use in the bicinchoninic acid (BCA) assay.