Potassium phosphate buffer solution is widely used in biological and biochemical research to maintain a stable pH environment. It is essential in experiments involving enzymes, proteins, and nucleic acids, as it ensures optimal conditions for their activity and stability. In cell culture, this buffer helps maintain physiological pH levels, promoting healthy cell growth and preventing damage. It is also utilized in diagnostic assays, such as ELISA, to ensure accurate and consistent results. Additionally, potassium phosphate buffer is employed in chromatography techniques to separate and analyze biomolecules effectively. Its buffering capacity makes it a reliable choice for various laboratory applications requiring precise pH control.