condition mean min max 12pM Fe 23.656975000000003 18.06425 29.2497 58pM Fe 21.47889285714286 19.772285714285715 23.1855 233pM Fe 15.409333333333334 15.409333333333334 15.409333333333334 1160pM Fe 18.014759285714284 17.64372857142857 18.38579 Dark 10.187786000000001 7.92161 12.453962 Light 11.560621692307691 11.560621692307691 11.560621692307691 Phloroglucinol 8.501380000000001 8.501380000000001 8.501380000000001