condition mean min max 12pM Fe 11.41396 8.17242 14.6555 58pM Fe 3.0391271428571427 2.6336642857142856 3.44459 233pM Fe 2.96564 2.96564 2.96564 1160pM Fe 3.1893867142857144 1.828182 4.550591428571429 Dark 9.686699333333333 3.34893 16.024468666666667 Light 15.610056923076923 15.610056923076923 15.610056923076923 Phloroglucinol 25.8804 25.8804 25.8804