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, 500MG
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
Ethos Biosciences Buffer Diluent phosphate concentrate 1/EA
Dilurex 10X PBS is a concentrated solution of phosphate buffered saline intended as a stock solution Save space by keeping 10x concentrate and dilute to 1x pH 7 4 working concentration as needed by mixing 1 part 10X PBS with 9 parts distilled water Skip the tedium of weighing powders and stocking raw materials that can expire Our PBS is convenient ready to use and will save you hours in the lab letting you focus on breakthroughs rather than buffer prep Thousands of researchers trust Ethos Biosciences 10X PBS for its proven track record in top-tier publications and protocols - upgrade your productivity today
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
Medchemexpress LLC PbS/CdS QDs (PbS/CdSe QD) | PbS/CdS | 10 MG
PbS/CdS quantum dots are colloidal nanocrystals designed as a fluorescent probe for in vivo imaging in the second near-infrared (NIR-II) window. These aqueous suspensions emit near ~1300 nm, yielding high signal-to-background ratio and reduced tissue scattering for deeper, clearer fluorescence imaging. The product is supplied as a light yellow to brown liquid suspension at 10 mg/mL and requires protection from light during storage.
Electron Microscopy Sciences Pipes 1.5 Sodium Salt, Crystal, 6.8 @25°C pH 25 GR
(Piperazine-N,N-bis (2-ethanesulfonic acid,) 1.5 Sodium)
F.W. 335.3
pH: 6.8 @25°C
Hach Company Butterfield's Buffered Phosphate, 90 mL
Butterfields Buffered Phosphate, Diluent, 90 mL single bottle.
Alkali Scientific CellPro™ PBS, 1X, pH 7.4, without Calcium & Magnesium, Sterile Filtered, 500mL
Phosphate-buffered saline (PBS) is a balanced salt solution that is 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. PBS is formulated without calcium and magnesium for rinsing chelators from the culture before cell dissociation. Concentrated forms of Gibco™ PBS may require pH adjustment at the time of dilution.
Boston Bioproducts Inc Sodium Phosphate Buffer (1 M, pH 7.6) - 500ml
Sodium Phosphate Buffer (1 M pH 7 6) - 500ml (For Research Use and Further Manufacturing Only)