condition mean min max 12pM Fe 31.077325 29.710949999999997 32.4437 58pM Fe 23.671414285714285 19.66042857142857 27.6824 233pM Fe 28.0171 28.0171 28.0171 1160pM Fe 17.66749107142857 13.813225 21.521757142857144 Dark 21.513866666666665 20.7113 22.316433333333332 Light 19.249858461538462 19.249858461538462 19.249858461538462 Phloroglucinol 30.2749 30.2749 30.2749