condition mean min max 12pM Fe 30.512375000000006 23.1761 37.848650000000006 58pM Fe 46.05748571428572 28.5411 63.57387142857143 233pM Fe 23.5117 23.5117 23.5117 1160pM Fe 20.418480119047622 10.660531666666667 30.176428571428573 Dark 62.094431 52.750762 71.4381 Light 26.91499 26.91499 26.91499 Phloroglucinol 6.07293 6.07293 6.07293