condition mean min max 12pM Fe 50.182275000000004 41.17385 59.1907 58pM Fe 40.448707142857145 28.522714285714287 52.3747 233pM Fe 38.9354 38.9354 38.9354 1160pM Fe 38.879130357142856 34.648385714285716 43.109875 Dark 46.128386666666664 39.3475 52.90927333333333 Light 52.98126153846154 52.98126153846154 52.98126153846154 Phloroglucinol 27.6397 27.6397 27.6397