condition mean min max 12pM Fe 31.2101 28.435200000000002 33.985 58pM Fe 15.548457142857142 13.622914285714286 17.474 233pM Fe 10.8109 10.8109 10.8109 1160pM Fe 9.373757261904762 6.939171666666667 11.808342857142858 Dark 25.04153766666667 20.8957 29.187375333333335 Light 16.602286923076925 16.602286923076925 16.602286923076925 Phloroglucinol 1.659729 1.659729 1.659729