Buffer solutions serve to keep pH (acidity or alkalinity) nearly constant in a variety of chemical and biological applications. For example, a bicarbonate buffer helps maintain the pH of blood, a buffered saline maintains cellular contents at a consistent pH level, and buffers help maintain a narrow pH range for enzymes to function correctly.

Browse a full range of Buffers and Standards products from leading suppliers. Shop now at Fisher Scientific for all of your scientific needs.

Shop Buffer Solution, pH 4.00 (Certified), Fisher Chemical™ at Fishersci.com Buffer Solution, pH 4.00 (Certified), Fisher Chemical Poly Bottle; 500mL:Buffers | Fisher Scientific accessibility menu, dialog, popup

Balanced salt solutions and powders used for molecular, protein, nucleic acid, and cell biology applications including cell culture, electrophoresis, ELISA, and chromatography processes; available in a variety of formulations and grades.

Fisher Bioreagents buffers meet the needs of every budget and scale. Obtaining optimal results in your research requires careful selection of reagents. When your experiments require exact buffering conditions, you can depend on the reliability of Fisher Bioreagents buffers.

Perform accurate pH calibrations with color-coded, twin neck Fisherbrand™ pH Buffer Bottles. Buffer Color Codes: Pink = pH 4.01; Yellow = pH 7.00; Blue = pH 10.01; Available in 500 mL bottles

RICCA CHEMICAL COMPANY offers a complete line of pH buffers ranging from pH 1 to pH 13. Commonly used buffers (pH 4, 7 and 10) are available as clear or color-coded reference standard solutions for easier identification in the lab. Alternate color-coding is available for other pH values.

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Perform accurate, reproducible pH calibrations with these color-coded buffer bottles. May cause eye, skin, and respiratory tract irritation. Use personal protective equipment. Ensure adequate ventilation. Wash off immediately with plenty of water for at least 15 minutes. Get medical attention immediately if symptoms occur.

Thermo Scientific™ 10X FastDigest™ Buffer is a proprietary restriction digestion reaction buffer. All FastDigest restriction enzymes have 100 % in this buffer which enables: • Double and multiple digestion in universal buffer for any combination of enzymes • Eliminates sequential digestions and buffer changes