Keep my session open?
Ending In 
The session is expired
Your session has expired. For your security, we have logged you out.
Would you like to log in again?

Biological buffers

Biological buffers
Practical tips for preparing buffer solutions
  • Buffer characteristics
  • Useful pH range
  • Preparing buffer solutions
  • Common buffer solutions

Many biochemical processes are markedly impaired by even small changes in the concentrations of free H + ions. It is therefore usually necessary to stabilise the H + concentration in vitro by adding a suitable buffer to the medium, without, however, affecting the functioning of the system under investigation.

A buffer keeps the pH value of a solution constant by taking up protons that are released during reactions, or by releasing protons when they are consumed by reactions.