condition mean min max 12pM Fe 25.902275 20.1473 31.657249999999998 58pM Fe 30.81417857142857 15.5515 46.07685714285714 233pM Fe 21.092200000000002 21.092200000000002 21.092200000000002 1160pM Fe 18.37225619047619 10.114795714285714 26.629716666666667 Dark 20.66947 14.6279 26.71104 Light 18.398894538461537 18.398894538461537 18.398894538461537 Phloroglucinol 26.738100000000003 26.738100000000003 26.738100000000003