condition mean min max 12pM Fe 0.209148 0.0 0.418296 58pM Fe 0.185303 0.0 0.370606 233pM Fe 0.33399 0.33399 0.33399 1160pM Fe 1.3424010297619047 0.48870291666666665 2.196099142857143 Dark 0.5540553333333333 0.0 1.1081106666666667 Light 0.5695461538461538 0.5695461538461538 0.5695461538461538 Phloroglucinol 0.7160989999999999 0.7160989999999999 0.7160989999999999