condition mean min max 12pM Fe 55.323325 50.223349999999996 60.4233 58pM Fe 97.93178571428572 97.59487142857144 98.2687 233pM Fe 18.5627 18.5627 18.5627 1160pM Fe 15.509565654761904 7.253574166666667 23.76555714285714 Dark 19.602450666666666 18.1013 21.103601333333334 Light 20.326216923076924 20.326216923076924 20.326216923076924 Phloroglucinol 22.0629 22.0629 22.0629