condition mean min max 12pM Fe 76.617175 72.7318 80.50255 58pM Fe 85.48216428571428 73.121 97.84332857142857 233pM Fe 107.04 107.04 107.04 1160pM Fe 89.56298511904762 58.82432857142857 120.30164166666667 Dark 79.19017666666667 77.0282 81.35215333333333 Light 50.01636153846154 50.01636153846154 50.01636153846154 Phloroglucinol 82.7643 82.7643 82.7643