Cell Washing and Resuspension: Isotonic buffer (150 mM NaCl) for gentle washing and resuspension of mammalian cells and microbes (e.g., Escherichia coli, Staphylococcus aureus).

Immunoassay Wash/Dilution Buffer: Used to dilute antibodies and wash in ELISA, Western blot, and ICC/IHC; pH 6.0 can help minimize nonspecific binding for certain antibodies.

Flow Cytometry: Serves as a base wash/stain buffer to maintain osmotic balance during labeling and analysis (often supplemented with BSA/azide as needed).

Microscopy and Tissue Handling: Rinsing tissues/sections and maintaining sample integrity during imaging and histology workflows.

Protein Sample Preparation: Dilution and short-term storage of proteins/peptides at slightly acidic pH to support stability for acid-favoring targets.

Cell Culture Workflows: Pre- and post-trypsinization rinses, reagent preparation, and neutral dilutions without adding divalent cations.

Microbial Procedures: Washing, dilution, and suspension of bacterial pellets (e.g., Pseudomonas aeruginosa, Bacillus subtilis) without providing nutrients for growth.

Ligand–Receptor and Binding Assays: Maintains isotonic, phosphate-buffered conditions for surface binding studies and plate-based assays.

Chromatography Support: Sample equilibration, dilution, and fraction handling where phosphate/saline conditions at pH 6.0 are acceptable.

General Reagent Preparation: pH-stable diluent for enzymes and reagents compatible with phosphate and 150 mM NaCl.