condition mean min max 12pM Fe 13.66565 11.6997 15.6316 58pM Fe 11.184071428571428 8.377642857142858 13.9905 233pM Fe 13.8973 13.8973 13.8973 1160pM Fe 11.825309642857142 7.316304285714286 16.334315 Dark 17.999531 11.3865 24.612562 Light 16.584382769230768 16.584382769230768 16.584382769230768 Phloroglucinol 7.7326 7.7326 7.7326