condition mean min max 12pM Fe 14.58305 12.4485 16.7176 58pM Fe 14.470375 9.42245 19.5183 233pM Fe 14.1882 14.1882 14.1882 1160pM Fe 7.504750595238095 7.2464683333333335 7.763032857142857 Dark 9.0457 7.55514 10.53626 Light 7.415456538461538 7.415456538461538 7.415456538461538 Phloroglucinol 7.41595 7.41595 7.41595