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
Boston Bioproducts Inc Tris-Acetate Buffer (0.2 M, pH 7.0) - 500ml
The Tris-Acetate Buffer is a buffering agent composed of Tris-base and acetic acid. The combination of these ingredients yields a pH range of 6.0-8.0. This buffer is ideal for requiring a pH slightly above physiological conditions. Often used to support the electrophoresis of nucleic acids on agarose gel and protein electrophoresis employing SDS-PAGE and related blotting techniques.
Sigma Aldrich Fine Chemicals Biosciences ACES >=99.0% (titration) | 7365-82-4 | MFCD00008030 | 100G
ACES >=99.0% (titration) | Purity: >=99.0% (titration) | Mol Wt: 182.2 | 7365-82-4 | MFCD00008030 | 100G
Sigma Aldrich Fine Chemicals Biosciences Ethylenediaminetetraacetic acid BioUltra, anhydrous | 60-00-4 | MFCD00003541 | 500g
Ethylenediaminetetraacetic acid BioUltra, anhydrous | Purity: 99% | Mol Wt: 292.24 | 60-00-4 | MFCD00003541 | 500g
Sigma Aldrich Fine Chemicals Biosciences BIS-TRIS BioPerformance Certified, suitable for cell culture, suitable for insect cell culture, >=98.0% | 6976-37-0 | MFCD00002853 | 500G
BIS-TRIS BioPerformance Certified, suitable for cell culture, suitable for insect cell culture, >=98.0% | Purity: >=98.0% | Mol Wt: 209.24 | 6976-37-0 | MFCD00002853 | 500G
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 anhydrous, free-flowing, powder, Redi-Dri(TM), ACS reagent, 99.4-100.6% | 60-00-4 | MFCD00003541 | 500G
Ethylenediaminetetraacetic acid anhydrous, free-flowing, powder, Redi-Dri(TM), ACS reagent, 99.4-100.6% | Purity: 99.4-100.6% | Mol Wt: 292.24 | 60-00-4 | MFCD00003541 | 500G
SAPPHIRE NORTH AMERICA ALUMINIUM CRYO TBS + CPS 15ML
Aluminium cryo tubes + caps, 15 ml, 29mmx 30mm / 100 pcs
Sigma Aldrich Fine Chemicals Biosciences HEPES potassium salt | 82207-62-3 | MFCD00043438 | 100g
HEPES potassium salt | Purity: 99.5% | Mol Wt: 273.69 | 82207-62-3 | MFCD00043438 | 100g
Sigma Aldrich Fine Chemicals Biosciences PIPES BioXtra, for molecular biology, >=99.5% (T) | 5625-37-6 | MFCD00006159 | 50G
PIPES BioXtra, for molecular biology, >=99.5% (T) | Purity: >=99.5% (T) | Mol Wt: 302.37 | 5625-37-6 | MFCD00006159 | 50G
Sigma Aldrich Fine Chemicals Biosciences HEPES solution BioPerformance Certified, 1 M, suitable for cell culture, 0.2 mum filtered | 7365-45-9 | MFCD00006158 | 1L
HEPES solution BioPerformance Certified, 1 M, suitable for cell culture, 0.2 mum filtered | 7365-45-9 | MFCD00006158 | 1L
Sigma Aldrich Fine Chemicals Biosciences CHES >=99.0% (titration) | 103-47-9 | MFCD00003835 | 100G
CHES >=99.0% (titration) | Purity: >=99.0% (titration) | Mol Wt: 207.29 | 103-47-9 | MFCD00003835 | 100G
Sigma Aldrich Fine Chemicals Biosciences HEPES hemisodium salt dry powder | 103404-87-1 | 10PAK
HEPES hemisodium salt dry powder | Mol Wt: 249.3 | 103404-87-1 | 10PAK
United States Biological Corporation TRIS HCL BUFFER 1M PH7.5,500ML
Tris is one of the most widely used buffers in molecular biology and cell culture due to its low toxicity, stability and buffering capacity. Purity: ≥99.9% Appearance: White, crystalline powder pH (1M): 10.5-11.5 pKa: 8.0-8.4 Absorbance (260nm): ≤0.06 Absorbance (280nm): ≤0.05 Absorbance (290nm): ≤0.2 Solubility (1M): Colorless, clear, complete Loss on Drying: ≤0.2% Melting Point: 168-172°C Heavy Metals (Pb): ≤0.0001% Arsenic: ≤0.0001% Calcium: ≤0.0001% Copper: ≤0.0001% Iron: ≤0.0005% Magnesium: ≤0.0001% Insoluble Matter: ≤0.005% Residue on Ignition: ≤0.1% RNase: DNase: Protease: Meets specifications.
Kd Medical Inc TRIS-GLYCINE-SDS BUFFER 10X
Tris-Glycine-SDS PAGE Buffer (10X) is a concentrated solution of Tris-Glycine-SDS in distilled/deionized water, especially intended for use as the running buffer in SDS-PAGE of proteins. One 1 liter bottle.