condition mean min max 12pM Fe 17.9182 15.6656 20.1708 58pM Fe 21.01280714285714 20.7129 21.312714285714286 233pM Fe 35.2908 35.2908 35.2908 1160pM Fe 17.233394642857142 16.379714285714286 18.087075 Dark 27.291449999999998 21.9449 32.638 Light 34.03166923076923 34.03166923076923 34.03166923076923 Phloroglucinol 14.2522 14.2522 14.2522