condition mean min max 12pM Fe 0.135204 0.0 0.270408 58pM Fe 0.03344107142857143 0.0 0.06688214285714286 233pM Fe 0.0 0.0 0.0 1160pM Fe 0.15534254761904762 0.05785742857142857 0.2528276666666667 Dark 14.068430000000001 0.0 28.136860000000002 Light 13.681469230769231 13.681469230769231 13.681469230769231 Phloroglucinol 17.4666 17.4666 17.4666