condition mean min max 12pM Fe 13.7283 12.942 14.5146 58pM Fe 10.089512857142857 8.902225714285715 11.2768 233pM Fe 7.68074 7.68074 7.68074 1160pM Fe 7.492137916666667 4.704465833333334 10.27981 Dark 8.220482 6.24621 10.194754 Light 9.205393846153846 9.205393846153846 9.205393846153846 Phloroglucinol 7.47056 7.47056 7.47056