condition mean min max 12pM Fe 19.6248 19.5694 19.6802 58pM Fe 13.556492857142857 11.1628 15.950185714285714 233pM Fe 6.20936 6.20936 6.20936 1160pM Fe 15.330431607142858 13.496585714285715 17.1642775 Dark 19.9043 18.4888 21.3198 Light 17.248014615384616 17.248014615384616 17.248014615384616 Phloroglucinol 30.9746 30.9746 30.9746