condition mean min max 12pM Fe 31.71905 17.4775 45.9606 58pM Fe 24.6313 14.1402 35.1224 233pM Fe 13.6629 13.6629 13.6629 1160pM Fe 19.860213988095236 4.554170833333333 35.16625714285714 Dark 15.663212 13.673824 17.6526 Light 12.969612307692307 12.969612307692307 12.969612307692307 Phloroglucinol 9.90239 9.90239 9.90239