condition mean min max 12pM Fe 21.1466 16.9981 25.2951 58pM Fe 16.669107142857143 13.5112 19.827014285714284 233pM Fe 24.206500000000002 24.206500000000002 24.206500000000002 1160pM Fe 14.935365654761904 12.916974166666666 16.953757142857143 Dark 10.900127999999999 9.83132 11.968936 Light 12.337617076923078 12.337617076923078 12.337617076923078 Phloroglucinol 21.743199999999998 21.743199999999998 21.743199999999998