Phosphate Buffer, pH 7.2 is used for the preparation of microbiological dilution blanks in a laboratory setting. Phosphate Buffer, pH 7.2 is not intended for use in the diagnosis of disease or other conditions in humans. The formula for phosphate buffer is specified by the American Public Health Association (APHA) for use in diluting test samples. Phosphate Buffer, pH 7.2 is specified for use in diluting water, dairy products and food for microbiological methods. In the examination of water and dairy products the addition of magnesium chloride is recommended.

This buffer is also referred to as Butterfield’s Buffered Phosphate Diluent and recommended for examination of food. Phosphate Buffer, pH 7.2 stabilises the pH of water used for dilutions.

• Analyte: non-selective
• Platform: dehydrated culture media
• Formula: potassium dihydrogen phosphate 26.22g/L, sodium carbonate 7.78g/L,
• Grams per litre: 34.00
• Litres per 500g: 15.00