condition mean min max 12pM Fe 36.6851 33.635799999999996 39.7344 58pM Fe 58.81057142857143 50.33434285714286 67.2868 233pM Fe 18.038899999999998 18.038899999999998 18.038899999999998 1160pM Fe 15.284802619047618 11.771476666666667 18.79812857142857 Dark 20.985520666666666 17.480141333333332 24.4909 Light 14.759532307692307 14.759532307692307 14.759532307692307 Phloroglucinol 22.7562 22.7562 22.7562