condition mean min max 12pM Fe 38.526849999999996 34.1259 42.9278 58pM Fe 66.68869285714285 44.80638571428571 88.571 233pM Fe 23.3633 23.3633 23.3633 1160pM Fe 18.87010101190476 12.351959166666667 25.388242857142856 Dark 18.15765366666667 13.7871 22.528207333333334 Light 16.35847846153846 16.35847846153846 16.35847846153846 Phloroglucinol 18.3986 18.3986 18.3986