condition mean min max 12pM Fe 55.193225 53.1679 57.21855 58pM Fe 58.55305714285714 43.9706 73.13551428571428 233pM Fe 28.969 28.969 28.969 1160pM Fe 41.26269821428572 36.34747142857143 46.177925 Dark 29.297266666666665 25.4105 33.18403333333333 Light 33.650984615384615 33.650984615384615 33.650984615384615 Phloroglucinol 110.1881 110.1881 110.1881