condition mean min max 12pM Fe 26.675375000000003 22.45195 30.8988 58pM Fe 18.141285714285715 14.704571428571429 21.578 233pM Fe 7.88705 7.88705 7.88705 1160pM Fe 13.169137797619047 12.18297142857143 14.155304166666667 Dark 11.922212333333334 11.8762 11.968224666666666 Light 9.983151538461538 9.983151538461538 9.983151538461538 Phloroglucinol 7.89251 7.89251 7.89251