condition mean min max 12pM Fe 79.973625 76.47135 83.4759 58pM Fe 75.31995 69.249 81.3909 233pM Fe 41.766400000000004 41.766400000000004 41.766400000000004 1160pM Fe 45.883112499999996 35.914325 55.8519 Dark 50.47329666666667 37.1512 63.79539333333333 Light 43.99526615384615 43.99526615384615 43.99526615384615 Phloroglucinol 62.2811 62.2811 62.2811