condition mean min max 12pM Fe 13.444075 6.1541 20.73405 58pM Fe 26.209142857142858 14.679 37.739285714285714 233pM Fe 116.096 116.096 116.096 1160pM Fe 65.99645402380952 0.33822471428571427 131.65468333333334 Dark 88.49202 26.5222 150.46184 Light 98.9325076923077 98.9325076923077 98.9325076923077 Phloroglucinol 12.16993 12.16993 12.16993