condition mean min max 12pM Fe 31.35945 30.9976 31.7213 58pM Fe 17.825865 12.51413 23.1376 233pM Fe 13.2158 13.2158 13.2158 1160pM Fe 6.630957380952381 4.213533333333333 9.048381428571428 Dark 20.850505666666667 15.928011333333334 25.773 Light 14.277390769230768 14.277390769230768 14.277390769230768 Phloroglucinol 12.620930000000001 12.620930000000001 12.620930000000001