Tris Buffer Problem
Posted 28 October 2009 - 12:31 PM
Posted 28 October 2009 - 03:12 PM
Posted 28 October 2009 - 06:01 PM
Posted 28 October 2009 - 07:16 PM
buffer prep without the need to adjust pH is given in that for whatever volume you need but you have to prepare a stock of the two components first...
It is calculated by the Henderson–Hasselbalch equation which takes into consideration pKa values for the the components and theoritically calculats the needed amount for the desired pH!!!
Posted 28 October 2009 - 07:21 PM
Make 50 mM solutions of Tris HCl and of Tris Base. Mix them together to achieve the proper pH in sufficient volume to have 125 ml minimum. Throw away the extra after you are done adjusting pH.
Alternatively if you dont have a reference, as phage says this is a good approach too!!! i would second him on this (you may have to waset the solutions though if you are not careful enough!!!)