Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More
Learn More
Alkali Scientific Phosphate Buffer #4 (0.1M,pH 4.5) 1000mL Bottle, 1/Pk
Supplier: Alkali Scientific MHHB02
Phosphate Buffer #4 is a prepared liquid reagent formulated to an acidic pH of 4.5 with a concentration of 0.1 M. It provides a stable low pH environment widely used in analytical chemistry, chromatography, and biological assays. The formulation relies on phosphate ion equilibrium, primarily the monobasic form (H2PO4 ), to maintain acidity and buffering capacity. In HPLC applications it is commonly used as a mobile phase component where pH 4.5 suppresses ionization of acidic analytes, improving retention and peak shape on reverse phase columns. It also supports enzymatic reactions that require acidic conditions, such as acid phosphatase activity. In pharmaceutical and laboratory testing it can simulate mildly acidic environments for dissolution, solubility studies, and routine analytical procedures.
Product Title
By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.
Spot an opportunity for improvement?