tamponador = of Tamponun buffer, buffer, buffer or regulatory solution is a mixture at relatively high concentration of a weak acid and its conjugate base, i.e., sales hidroliticamente active. They have the property of keeping stable the pH of a solution with the addition of amounts relatively small of acids and strong bases. This fact is of crucial importance, since merely with a slight change in the concentration of hydrogen ions in the cell may occur a stoppage in the activity of enzymes.