condition mean min max 12pM Fe 26.013125000000002 22.90865 29.1176 58pM Fe 17.7876 16.2222 19.353 233pM Fe 9.29803 9.29803 9.29803 1160pM Fe 12.702739821428572 11.1822225 14.223257142857143 Dark 15.117629666666668 13.368359333333334 16.8669 Light 12.089987692307693 12.089987692307693 12.089987692307693 Phloroglucinol 33.0861 33.0861 33.0861