condition mean min max 12pM Fe 26.97855 22.9859 30.9712 58pM Fe 18.987992857142856 17.923785714285714 20.0522 233pM Fe 18.1227 18.1227 18.1227 1160pM Fe 11.796595714285715 9.922320000000001 13.670871428571429 Dark 22.899682666666667 20.8673 24.932065333333334 Light 19.857833846153845 19.857833846153845 19.857833846153845 Phloroglucinol 16.5073 16.5073 16.5073