condition mean min max 12pM Fe 55.595825 48.2128 62.978849999999994 58pM Fe 56.46552857142857 53.03615714285714 59.8949 233pM Fe 51.8771 51.8771 51.8771 1160pM Fe 35.515880952380954 28.657228571428572 42.37453333333333 Dark 47.38963 38.74506 56.0342 Light 26.424862307692308 26.424862307692308 26.424862307692308 Phloroglucinol 15.2309 15.2309 15.2309