condition mean min max 12pM Fe 15.963275 10.7626 21.16395 58pM Fe 22.773195714285713 9.11802 36.428371428571424 233pM Fe 24.19526666666667 24.19526666666667 24.19526666666667 1160pM Fe 4.64348575 1.462384 7.8245875 Dark 14.845687900000001 12.2794 17.4119758 Light 10.385623461538461 10.385623461538461 10.385623461538461 Phloroglucinol 6.437749999999999 6.437749999999999 6.437749999999999