condition mean min max 12pM Fe 29.089100000000002 25.972900000000003 32.2053 58pM Fe 22.67407142857143 21.323542857142858 24.0246 233pM Fe 13.8068 13.8068 13.8068 1160pM Fe 34.39657452380953 19.721185714285713 49.071963333333336 Dark 15.084754 13.5606 16.608908 Light 13.503758692307693 13.503758692307693 13.503758692307693 Phloroglucinol 29.5749 29.5749 29.5749