condition mean min max 12pM Fe 43.24665 29.9515 56.5418 58pM Fe 32.10765714285714 17.391514285714287 46.8238 233pM Fe 28.558999999999997 28.558999999999997 28.558999999999997 1160pM Fe 26.253316964285712 8.7761625 43.73047142857143 Dark 30.07224 17.4333 42.71118 Light 34.930562307692306 34.930562307692306 34.930562307692306 Phloroglucinol 27.94353333333333 27.94353333333333 27.94353333333333