condition mean min max 12pM Fe 2.1376925 1.933525 2.34186 58pM Fe 1.57321 1.24331 1.90311 233pM Fe 0.63241 0.63241 0.63241 1160pM Fe 1.397965761904762 0.7071968571428572 2.088734666666667 Dark 1.78041 1.52218 2.03864 Light 1.623567076923077 1.623567076923077 1.623567076923077 Phloroglucinol 243.9019 243.9019 243.9019