NP 40 Lysis High Salt Buffer Solution, 500 milliliters, is a highly effective buffer designed for protein extraction. It contains a high salt concentration that enhances the lysis of cell membranes, making it ideal for extracting proteins from various biological samples. The NP40 detergent in the buffer ensures the solubilization of membrane proteins, facilitating the release of proteins into solution while preserving protein integrity. Commonly used in immunological and biochemical research, this buffer is perfect for isolating proteins from both mammalian and bacterial cells, offering a critical step for downstream applications like western blotting and ELISA.