condition mean min max 12pM Fe 0.0 0.0 0.0 58pM Fe 0.0 0.0 0.0 233pM Fe 0.41385299999999997 0.41385299999999997 0.41385299999999997 1160pM Fe 0.03810892857142857 0.0 0.07621785714285714 Dark 0.5621989333333333 0.056447866666666666 1.06795 Light 0.156285 0.156285 0.156285 Phloroglucinol 0.84176 0.84176 0.84176