condition mean min max 12pM Fe 17.560275 15.4305 19.69005 58pM Fe 11.646921428571428 11.313 11.980842857142857 233pM Fe 17.549599999999998 17.549599999999998 17.549599999999998 1160pM Fe 10.611793988095238 5.728757142857143 15.494830833333333 Dark 9.702695 9.01759 10.3878 Light 6.084383076923077 6.084383076923077 6.084383076923077 Phloroglucinol 22.2136 22.2136 22.2136