condition mean min max 12pM Fe 15.3275 11.7893 18.8657 58pM Fe 11.372972857142857 10.186245714285715 12.5597 233pM Fe 8.51096 8.51096 8.51096 1160pM Fe 9.108085535714286 7.7141625000000005 10.502008571428572 Dark 14.723511333333335 14.265022666666667 15.182 Light 11.326416923076923 11.326416923076923 11.326416923076923 Phloroglucinol 6.12579 6.12579 6.12579