condition mean min max 12pM Fe 25.5935 13.233 37.954 58pM Fe 23.58301142857143 9.802522857142858 37.3635 233pM Fe 13.0781 13.0781 13.0781 1160pM Fe 17.18756363095238 3.6419558333333333 30.733171428571428 Dark 12.458461666666667 10.499623333333334 14.4173 Light 13.716536923076923 13.716536923076923 13.716536923076923 Phloroglucinol 12.69115 12.69115 12.69115