condition mean min max 12pM Fe 57.042175 56.40885 57.6755 58pM Fe 53.38926428571428 47.15212857142857 59.6264 233pM Fe 39.355199999999996 39.355199999999996 39.355199999999996 1160pM Fe 33.24447970238095 24.525130833333332 41.96382857142857 Dark 19.552703333333334 18.6485 20.45690666666667 Light 11.222803846153846 11.222803846153846 11.222803846153846 Phloroglucinol 32.6822 32.6822 32.6822