Salt solutions play a crucial role in laboratory settings, ensuring the osmolarity balance of reagents and helping to stabilize pH levels. They are commonly employed as cell wash solutions before dissociation and as reaction buffers in various biochemical assays, including ELISA and other diagnostic methods.

In microbiology, these solutions are essential for preparing culture media and diluting samples for testing.

Additionally, salt solutions are instrumental in preparing organ parts, aiding in cell dissociation, isolating cell suspensions, and creating viral transport mediums.