condition mean min max 12pM Fe 7.918284999999999 7.61302 8.22355 58pM Fe 14.40043 3.67438 25.12648 233pM Fe 8.79107 8.79107 8.79107 1160pM Fe 2.2678566130952382 2.144577142857143 2.3911360833333335 Dark 5.980776499999999 5.776113 6.18544 Light 2.343571923076923 2.343571923076923 2.343571923076923 Phloroglucinol 2.4919733333333336 2.4919733333333336 2.4919733333333336