condition mean min max 12pM Fe 49.63355 39.7292 59.5379 58pM Fe 43.174235714285714 41.36627142857143 44.9822 233pM Fe 39.4113 39.4113 39.4113 1160pM Fe 40.74589226190476 36.98354166666667 44.508242857142854 Dark 27.89941233333333 26.7914 29.007424666666665 Light 27.93531 27.93531 27.93531 Phloroglucinol 41.5276 41.5276 41.5276