condition mean min max 12pM Fe 15.12665 10.9698 19.2835 58pM Fe 17.897244999999998 7.26059 28.5339 233pM Fe 18.0341 18.0341 18.0341 1160pM Fe 15.930392857142856 12.148685714285714 19.7121 Dark 21.165545666666667 13.9559 28.375191333333333 Light 39.11493 39.11493 39.11493 Phloroglucinol 5.29702 5.29702 5.29702