condition mean min max 12pM Fe 96.93565 93.52629999999999 100.345 58pM Fe 62.302521428571424 61.434842857142854 63.1702 233pM Fe 52.0771 52.0771 52.0771 1160pM Fe 44.45059523809524 39.811733333333336 49.08945714285714 Dark 42.422776666666664 42.10575333333333 42.7398 Light 27.39654923076923 27.39654923076923 27.39654923076923 Phloroglucinol 39.5571 39.5571 39.5571