condition mean min max 12pM Fe 0.0 0.0 0.0 58pM Fe 3.038807142857143 0.0 6.077614285714286 233pM Fe 0.0 0.0 0.0 1160pM Fe 13.31338392857143 6.633825000000001 19.992942857142857 Dark 81.9085 0.0 163.817 Light 25.938138461538465 25.938138461538465 25.938138461538465 Phloroglucinol 0.0 0.0 0.0