condition mean min max 12pM Fe 26.107675 21.096049999999998 31.1193 58pM Fe 13.521573571428572 6.063447142857143 20.9797 233pM Fe 5.370950000000001 5.370950000000001 5.370950000000001 1160pM Fe 6.664445023809524 1.7715443333333334 11.557345714285715 Dark 11.843795799999999 10.1136 13.5739916 Light 8.008125692307692 8.008125692307692 8.008125692307692 Phloroglucinol 24.360400000000002 24.360400000000002 24.360400000000002