condition mean min max 12pM Fe 49.798525 42.378 57.219049999999996 58pM Fe 45.135264285714285 38.35012857142857 51.9204 233pM Fe 37.4067 37.4067 37.4067 1160pM Fe 18.444480714285714 9.05239 27.83657142857143 Dark 44.002784 29.737168 58.2684 Light 30.51278076923077 30.51278076923077 30.51278076923077 Phloroglucinol 19.6364 19.6364 19.6364