condition mean min max 12pM Fe 18.967425 17.85505 20.0798 58pM Fe 14.10135 11.3744 16.8283 233pM Fe 15.4851 15.4851 15.4851 1160pM Fe 11.468083273809523 11.018385714285714 11.917780833333333 Dark 15.500376000000001 10.2055 20.795252 Light 17.235229076923076 17.235229076923076 17.235229076923076 Phloroglucinol 17.7116 17.7116 17.7116