condition mean min max 12pM Fe 81.715925 68.4139 95.01795 58pM Fe 61.08975 49.0831 73.0964 233pM Fe 61.196533333333335 61.196533333333335 61.196533333333335 1160pM Fe 54.619658928571425 45.900975 63.338342857142855 Dark 32.736342 0.0 65.472684 Light 34.819851538461535 34.819851538461535 34.819851538461535 Phloroglucinol 42.0801 42.0801 42.0801