condition mean min max 12pM Fe 28.471625 16.62055 40.3227 58pM Fe 21.942330000000002 5.96126 37.9234 233pM Fe 10.83768 10.83768 10.83768 1160pM Fe 25.254300654761906 18.55354416666667 31.955057142857143 Dark 58.611067 8.24188 108.980254 Light 36.071342307692305 36.071342307692305 36.071342307692305 Phloroglucinol 75.4544 75.4544 75.4544