condition mean min max 12pM Fe 19.2879 13.135200000000001 25.4406 58pM Fe 7.6923385714285715 6.576017142857143 8.80866 233pM Fe 5.2947 5.2947 5.2947 1160pM Fe 4.929406386904762 1.8627199166666666 7.996092857142857 Dark 7.503822666666666 6.020685333333334 8.98696 Light 7.781007692307693 7.781007692307693 7.781007692307693 Phloroglucinol 6.63291 6.63291 6.63291