condition mean min max 12pM Fe 50.8874 45.256600000000006 56.5182 58pM Fe 43.02607857142857 40.5294 45.522757142857145 233pM Fe 26.7245 26.7245 26.7245 1160pM Fe 28.610064285714287 23.9252 33.29492857142857 Dark 23.540733333333336 15.6694 31.412066666666668 Light 22.808236923076922 22.808236923076922 22.808236923076922 Phloroglucinol 59.5691 59.5691 59.5691