condition mean min max 12pM Fe 14.395375 12.3781 16.41265 58pM Fe 21.337864285714286 12.4131 30.26262857142857 233pM Fe 31.2055 31.2055 31.2055 1160pM Fe 36.05657630952381 16.085294285714287 56.027858333333334 Dark 12.141994 2.68187 21.602118 Light 7.047757692307692 7.047757692307692 7.047757692307692 Phloroglucinol 2.98882 2.98882 2.98882