condition mean min max 12pM Fe 40.051024999999996 30.67745 49.4246 58pM Fe 25.561214285714286 17.96522857142857 33.1572 233pM Fe 14.470600000000001 14.470600000000001 14.470600000000001 1160pM Fe 16.60713619047619 12.091386666666667 21.122885714285715 Dark 15.0353 11.5483 18.5223 Light 18.112371538461538 18.112371538461538 18.112371538461538 Phloroglucinol 19.5689 19.5689 19.5689