POPSO buffer is widely used in biochemical and molecular biology research due to its effective pH stabilization properties. It is particularly useful in cell culture applications, where maintaining a consistent pH is crucial for cell growth and viability. POPSO buffer is also employed in enzymatic assays, as it provides a stable environment that ensures accurate and reproducible results. Additionally, it is used in protein purification processes, where it helps maintain the integrity and functionality of proteins during extraction and separation. Its compatibility with various biological systems makes it a versatile choice for researchers working in diverse fields, including microbiology, immunology, and biochemistry.