condition mean min max 12pM Fe 2.5482675 2.50483 2.591705 58pM Fe 10.944795 2.95519 18.9344 233pM Fe 85.37089999999999 85.37089999999999 85.37089999999999 1160pM Fe 61.142646380952385 0.3076844285714286 121.97760833333334 Dark 21.545568 1.69594 41.395196 Light 12.764323076923077 12.764323076923077 12.764323076923077 Phloroglucinol 1.407772 1.407772 1.407772