Skip to Content
MilliporeSigma

Biological Buffers

Light blue biological buffer solution in beaker with pipette.

It’s important to protect the integrity of your biomolecules and reagents by choosing the right biological buffer systems. We offer an extensive portfolio of biological buffers for a wide variety of applications, including cell culture buffers, PCR buffers, HEPES buffers, and assay buffers.

Key features of our advanced buffer systems:

  • High-purity solutions available in a wide range of grades
  • Multiple and user-friendly packaging options
  • Assured solution stability with pH control
  • No interference with biological processes
  • Add critical salts and nutrients to cells and tissues
  • Scalable from early research to commercial applications
  • Customized blending

Our advanced buffering systems can bring phenomenal stability to your cell culture, polymerase chain reaction (PCR), drug screening, bioprocessing, purification, and final formulation-based applications. All our products can be scaled from early research to commercial applications.

Section Overview



Related Product Resources

  • Buffer Reference Center

    Choose and prepare a biological buffer based on your pH requirements as well as the pKa, a measure of acid strength that accounts for pH, concentration, and temperature.

  • Polymerase Chain Reaction (PCR) Basics

    Polymerase chain reaction (PCR) is a technique that results in exponential amplification of a target DNA sequence.

  • TAE and TBE Running Buffers Recipe & Video

    TAE and TBE are both used as running buffers for nucleic acid electrophoresis but have some important differences. Review our recipes and video to give your application the best chance of success.

  • M-Clarity™ Program

    The MQ levels of the M-Clarity™ Program provide transparency so that you can choose, with confidence, suitable products that meet your needs.

  • Buffer Calculator

    Buffer solution calculator: Empirical formula, pKa, and buffer pH range calculations for various buffers.

  • Poster: Biological Buffers Selection Guide
  • Flyer: pHast Pack Electrophoresis

    The pHast Pack™ platform was developed to expedite your research and provide a convenient solution for tedious lab tasks.

  • Flyer: Tricine Buffer

    Our convenient Tricine high purity biological buffer was developed for unparalleled quality and economy.

  • Flyer: HEPES Buffer

    Our high-purity biological buffers will be HEPES of help for your research.

  • Flyer: Trizma Buffers

    Our convenient high purity Trizma® (tris) hydrochloride buffer and basimetric primary standard was developed for impeccable quality at a budget price.

  • Brochure: Biological Buffers

    High-purity biological buffers from bench to bulk volumes.

  • pHast Pack™ – Ready-to-Use Buffers

    Simplify your buffer solution preparation with our pHast Pack™ ready-to-use buffers which offer exact concentrations and pH without weighing, buffer calculations, and pH adjustments for reliable research results.

Page 1 of 3

Complete Workflow Solutions

We provide a comprehensive selection of high-quality biochemicals in a wide range of buffer grades and innovative, user-friendly packaging options. In addition to off-the-shelf products, we offer custom reagent manufacturing and customized blending.

Bioperformance Certified Buffers

Our superior BioPerformance Certified buffers are stringently tested and pre-qualified to expedite your bioprocessing workflows in critical life science applications, such as cell culture, molecular biology, and diagnostic manufacturing. This may include enzymatic assay of nuclease, protease, and phosphatase, cellular toxicity, or endotoxin and bioburden levels. Using a single high-quality buffer across multiple workflows ensures the reproducibility of your experiment.

pHast Pack™ Ready-to-Use Buffers

Trying to get the correct concentration and pH value in buffer preparations can be a tedious and time-consuming task. Our pHast Pack™ ready-to-use buffers are specially designed to simplify your work. Simply mix the precisely pre-weighed packets with distilled water for quick and reproducible results again and again. By saving time, effort and even shelf space, you can focus on more important areas of your research endeavors.

Need help making a buffer? Our buffer preparation calculator helps you to quickly calculate buffer molarity, mass, and volume.






Sign In To Continue

To continue reading please sign in or create an account.

Don't Have An Account?