condition mean min max 12pM Fe 56.6522125 6.853425 106.451 58pM Fe 41.5837715 2.079543 81.088 233pM Fe 12.6549 12.6549 12.6549 1160pM Fe 70.27923541666667 5.822470833333333 134.736 Dark 19.773629 18.488858 21.0584 Light 38.669323846153844 38.669323846153844 38.669323846153844 Phloroglucinol 99.5432 99.5432 99.5432