condition mean min max 12pM Fe 45.532775 44.8278 46.23775 58pM Fe 36.14322857142857 29.853357142857142 42.4331 233pM Fe 28.1807 28.1807 28.1807 1160pM Fe 32.363749404761904 17.430741666666666 47.296757142857146 Dark 26.92878 25.05896 28.7986 Light 20.734571538461537 20.734571538461537 20.734571538461537 Phloroglucinol 102.2404 102.2404 102.2404