condition mean min max 12pM Fe 39.471475 33.281549999999996 45.6614 58pM Fe 35.89082142857143 28.8122 42.96944285714286 233pM Fe 20.83096666666667 20.83096666666667 20.83096666666667 1160pM Fe 19.47736607142857 19.280974999999998 19.67375714285714 Dark 17.73084 12.7718 22.68988 Light 17.298333076923075 17.298333076923075 17.298333076923075 Phloroglucinol 36.907399999999996 36.907399999999996 36.907399999999996