T (K),ln(R/A),x_err (K),y_err_lower,y_err_upper,conc (mg/ml)
257.518,1.936,0.189,0.158,0.137,0.500
256.375,2.967,0.189,0.150,0.130,0.500
255.379,3.998,0.189,0.126,0.112,0.500
254.631,5.022,0.189,0.129,0.114,0.500
260.784,-0.156,0.262,0.397,0.283,0.660
259.628,1.071,0.262,0.150,0.130,0.660
261.249,0.971,0.128,0.235,0.190,0.800
259.494,1.609,0.128,0.195,0.163,0.800