condition mean min max 12pM Fe 71.912475 68.916 74.90895 58pM Fe 68.06606428571429 47.565828571428575 88.5663 233pM Fe 39.532000000000004 39.532000000000004 39.532000000000004 1160pM Fe 42.62213273809524 30.707508333333333 54.53675714285714 Dark 29.129488666666667 24.929877333333334 33.3291 Light 22.006626923076922 22.006626923076922 22.006626923076922 Phloroglucinol 23.6053 23.6053 23.6053