condition mean min max 12pM Fe 34.077175 28.52995 39.6244 58pM Fe 24.47207142857143 20.58554285714286 28.3586 233pM Fe 24.3124 24.3124 24.3124 1160pM Fe 22.581230654761903 10.065904166666666 35.096557142857144 Dark 17.341238 14.3927 20.289776 Light 17.972650769230768 17.972650769230768 17.972650769230768 Phloroglucinol 30.6862 30.6862 30.6862