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
Quality Biological Inc HBSS without Phenol Red, 500 mL
Hanks¿ Balanced Salt Solution (HBSS) provides a buffering system to maintain the physiological pH range and osmotic balance of the culture media. ¿ Provides cells with a source of water, essential inorganic ions, and carbohydrate as an energy source. ¿ Useful for diluting cells for counting. ¿ Formulations with calcium and magnesium support cell adhesion and are generally used as transport media, or for reagent preparation. ¿ Formulations without calcium and magnesium are required for rinsing chelators from the culture before cell dissociation. ¿ Storage Conditions: 15¿C to 30¿C ¿ Shipping Condition: ambient temperature ¿ Sterile Filtered ¿ Product and/or packaging contains recycled/renewable content ¿ Product and/or packaging is recyclable or reduces waste ¿ Product and/or packaging is safer to human and environmental health ¿ ¿ Max Shelf Life: 24 months
Teknova 1X PBS Solution with 185mM Sodium Chloride, pH 7.4. 1000mL, Sterile 2 pack.
Phosphate-buffered saline (PBS) is a salt solution that is commonly used in physiological and biochemical experiments. It can be used to maintain pH neutrality or to buffer against changes in pH in order to provide optimal conditions for cellular growth and function. The buffering range is between pH 6.8 and 7.4.
