condition mean min max 12pM Fe 109.787525 100.33605 119.239 58pM Fe 88.90493571428571 74.35687142857142 103.453 233pM Fe 68.4464 68.4464 68.4464 1160pM Fe 68.40843690476191 64.11951666666667 72.69735714285714 Dark 124.16022666666667 94.82345333333333 153.497 Light 88.96582307692307 88.96582307692307 88.96582307692307 Phloroglucinol 39.5442 39.5442 39.5442