condition mean min max 12pM Fe 0.0 0.0 0.0 58pM Fe 0.06308078571428571 0.0 0.12616157142857143 233pM Fe 0.0 0.0 0.0 1160pM Fe 0.041695750000000004 0.0196795 0.063712 Dark 0.013756966666666667 0.0 0.027513933333333334 Light 0.1077023076923077 0.1077023076923077 0.1077023076923077 Phloroglucinol 0.0 0.0 0.0