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 0.0040523375 0.0 0.008104675 Dark 0.008076433333333334 0.0 0.016152866666666668 Light 0.0 0.0 0.0 Phloroglucinol 0.0 0.0 0.0