condition mean min max 12pM Fe 24.254199999999997 12.8103 35.6981 58pM Fe 14.142599999999998 11.8881 16.3971 233pM Fe 45.41256666666666 45.41256666666666 45.41256666666666 1160pM Fe 13.510159107142858 11.4881325 15.532185714285713 Dark 21.712512 17.5161 25.908924 Light 65.18742615384615 65.18742615384615 65.18742615384615 Phloroglucinol 11.3947 11.3947 11.3947