condition mean min max 12pM Fe 37.111725 29.17445 45.049 58pM Fe 27.337292857142856 19.373585714285714 35.301 233pM Fe 16.7434 16.7434 16.7434 1160pM Fe 21.11905845238095 9.916188333333332 32.32192857142857 Dark 18.736104333333333 15.8193 21.65290866666667 Light 20.12545923076923 20.12545923076923 20.12545923076923 Phloroglucinol 19.6172 19.6172 19.6172