The pH of the buffer is typically maintained within a range of 7.4 ± 0.1, closely resembling the physiological pH found in many biological systems.

PBS buffer, a phosphate-buffered saline solution, is a versatile tool in laboratory research. It effectively maintains a stable pH and osmolarity, crucial for preserving the integrity of proteins and nucleic acids. By preventing fluctuations in these parameters, PBS helps protect cell health and function. This buffers compatibility extends to diverse experimental techniques. It can be used for washing and diluting cells, tissues, and proteins, as well as serving as a gentle elution buffer in purification processes.