condition mean min max 12pM Fe 46.98165 32.4634 61.4999 58pM Fe 32.5631 18.9297 46.1965 233pM Fe 34.7698 34.7698 34.7698 1160pM Fe 23.799406249999997 16.8329125 30.7659 Dark 55.74301 33.791 77.69502 Light 51.374907692307694 51.374907692307694 51.374907692307694 Phloroglucinol 65.52456666666667 65.52456666666667 65.52456666666667