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 0.0056793357142857145 0.0 0.011358671428571429 Dark 0.010253343333333333 0.0 0.020506686666666666 Light 0.0 0.0 0.0 Phloroglucinol 0.026420700000000002 0.026420700000000002 0.026420700000000002