condition mean min max 12pM Fe 78.13295 41.2949 114.971 58pM Fe 62.889064285714284 35.7939 89.98422857142857 233pM Fe 167.90933333333334 167.90933333333334 167.90933333333334 1160pM Fe 49.28371071428572 20.663271428571427 77.90415 Dark 60.709874 58.425448 62.9943 Light 20.976936153846154 20.976936153846154 20.976936153846154 Phloroglucinol 14.55682 14.55682 14.55682