Separation of low molecular mass proteins dependent on the pH and temperature
1. pH 8.80 at 12 °C 2. pH 8.80 at 15 °C 3. pH 8.80 at 21 °C
4. pH 8.80 at 24 °C 5. pH 8.80 at 27 °C 6. pH 8.80 at 30 °C
7. pH 8.80 at 33 °C
We commonly use a 1.5 M Tris/ HCl solution calibrated at 27 °C (5.), which allows the detection of proteins down to a molecular mass of approx. 6 kDa.