condition mean min max 12pM Fe 35.991924999999995 33.77305 38.2108 58pM Fe 22.984892857142857 20.239685714285713 25.7301 233pM Fe 21.7943 21.7943 21.7943 1160pM Fe 21.468391845238095 11.092140833333334 31.84464285714286 Dark 21.192206666666664 21.0875 21.296913333333332 Light 17.450394615384617 17.450394615384617 17.450394615384617 Phloroglucinol 24.0127 24.0127 24.0127