condition mean min max 12pM Fe 0.9476899999999999 0.0 1.8953799999999998 58pM Fe 0.7629478571428572 0.44590571428571424 1.07999 233pM Fe 0.0 0.0 0.0 1160pM Fe 0.3609279642857143 0.1514945 0.5703614285714286 Dark 2.5844240000000003 1.202188 3.96666 Light 4.903501538461539 4.903501538461539 4.903501538461539 Phloroglucinol 1.01976 1.01976 1.01976