condition mean min max 12pM Fe 36.55835 33.9571 39.1596 58pM Fe 22.06612857142857 17.823757142857144 26.3085 233pM Fe 15.317300000000001 15.317300000000001 15.317300000000001 1160pM Fe 14.061011607142857 7.4927375000000005 20.629285714285714 Dark 12.548328 10.9983 14.098355999999999 Light 12.303071538461538 12.303071538461538 12.303071538461538 Phloroglucinol 23.759866666666667 23.759866666666667 23.759866666666667