condition mean min max 12pM Fe 19.518774999999998 13.18055 25.857 58pM Fe 11.682947142857143 8.161194285714286 15.2047 233pM Fe 6.54729 6.54729 6.54729 1160pM Fe 9.449248511904763 5.568954166666667 13.329542857142858 Dark 8.039968333333332 7.18007 8.899866666666666 Light 10.833965692307693 10.833965692307693 10.833965692307693 Phloroglucinol 32.956900000000005 32.956900000000005 32.956900000000005