condition mean min max 12pM Fe 24.658050000000003 24.279400000000003 25.0367 58pM Fe 18.466992857142856 13.108285714285714 23.8257 233pM Fe 8.90763 8.90763 8.90763 1160pM Fe 8.11881125 4.3162225 11.9214 Dark 11.101411166666667 10.7467 11.456122333333333 Light 9.123809692307692 9.123809692307692 9.123809692307692 Phloroglucinol 9.88026 9.88026 9.88026