condition mean min max 12pM Fe 68.5184 46.679500000000004 90.3573 58pM Fe 44.56903571428572 28.121771428571428 61.0163 233pM Fe 19.331400000000002 19.331400000000002 19.331400000000002 1160pM Fe 32.58828773809524 12.831718333333333 52.344857142857144 Dark 25.71883 17.7738 33.66386 Light 30.627336153846155 30.627336153846155 30.627336153846155 Phloroglucinol 344.561 344.561 344.561