condition mean min max 12pM Fe 0.0 0.0 0.0 58pM Fe 0.0 0.0 0.0 233pM Fe 0.0 0.0 0.0 1160pM Fe 2.185342857142857 1.8707 2.4999857142857143 Dark 0.0 0.0 0.0 Light 8.598846153846154 8.598846153846154 8.598846153846154 Phloroglucinol 11.145999999999999 11.145999999999999 11.145999999999999