Vrse Vk T S pH_TRIS 1 -0.9047 -1.002 16.75 33.303 8.352675128 2 -0.9046 -0.988 16.831 33.303 8.350038238 3 -0.9046 -0.967 17.135 33.303 8.340152832 4 -0.9046 -0.965 17.14 33.303 8.339990388