Featuring prefilled, sterile Butterfield's Phosphate Buffer in convenient 99mL volumes, these dilution bottles deliver ready-to-use, consistent diluent for microbiological sample preparation. Butterfield's Phosphate Buffer contains monobasic potassium phosphate and is used extensively in the food, dairy, and pharmaceutical industries as a general diluent. The 99mL fill volume supports easy 1:100 dilutions, helping maintain a stable pH throughout the testing process without interfering with microbial growth.
Key Buffer Characteristics
- Butterfield's Phosphate Buffer formulation containing monobasic potassium phosphate
- Final pH of 7.2 +/- 0.2 at 25 degrees C for all solutions
- 99mL prefilled volume designed for easy 1:100 dilutions
- Recommended as a general diluent by the FDA and in the Bacteriological Analytical Manual (BAM)
- Recommended by APHA for the recovery of injured microorganisms from dairy and food samples
Key Construction Characteristics
- Easy-open, flip-top plastic container for one-handed operation during pipetting
- Tamper-evident seal supporting accurate and safe sample dilution
- Sterile, prefilled format that reduces preparation time and contamination risk
- Supplied 72 bottles per pack
Each prefilled bottle provides a uniform, sterile diluent that promotes consistent dilution accuracy and reliable recovery of target organisms. Prepared according to Standard Methods for the Examination of Water and Wastewater, these bottles support dependable results across water, dairy, food, and pharmaceutical testing workflows while protecting sample integrity.
- Capacity
- 99 mL
- Color
- Colorless
- Compliance Standards
- FDA Bacteriological Analytical Manual (BAM); Standard Methods for the Examination of Water and Wastewater; APHA recommended
- Material
- Liquid Media
- Pack Count
- 72
- pH Range
- 7.2 +/- 0.2 at 25 degrees C
- Sterility
- Sterile
- Microbiological Testing Provides a sterile general diluent for sample dilution of water, dairy products, foods, and pharmaceuticals prior to microbiological analysis.
- Plate Count Preparation Supports preparation of serial dilutions for plate counts where a stable pH and non-interfering diluent are required.
- Food and Dairy Quality Control Serves as the recommended diluent for recovery of injured microorganisms from food and dairy samples per APHA guidance.
- Water and Wastewater Testing Prepared according to Standard Methods for the Examination of Water and Wastewater for use in water testing.
- Pharmaceutical Microbiology Delivers a consistent, sterile general diluent for routine laboratory dilution procedures in pharmaceutical settings.