condition mean min max 12pM Fe 17.801175 14.409 21.193350000000002 58pM Fe 13.279150000000001 12.3101 14.2482 233pM Fe 17.4014 17.4014 17.4014 1160pM Fe 7.992158035714285 7.9151774999999995 8.06913857142857 Dark 12.040571 10.7651 13.316042 Light 6.558503615384615 6.558503615384615 6.558503615384615 Phloroglucinol 3.96013 3.96013 3.96013