Phosphate Buffer with Magnesium Chloride is used as the diluent for the preparation of dilutions in plate counts in the dairy and food industries. It is recommended by the APHA for the recovery of injured microorganisms from dairy and food samples. Contains deionized water, monopotassium phosphate, and magnesium chloride.
Whatman sterile dilution bottles are designed for sample dilution of water, dairy products, foods, and pharmaceuticals prior to microbiological testing. Final pH for all solutions is 7.2 pH ± 0.2 pH at 25°C. The buffers are supplied in an easy open, flip-top, plastic container with a tamper-evident seal.