condition mean min max 12pM Fe 17.43365 14.9636 19.9037 58pM Fe 15.408407142857143 11.667614285714286 19.1492 233pM Fe 7.7683599999999995 7.7683599999999995 7.7683599999999995 1160pM Fe 11.057911666666666 8.857023333333334 13.258799999999999 Dark 8.969757333333334 7.57231 10.367204666666666 Light 9.397134615384616 9.397134615384616 9.397134615384616 Phloroglucinol 14.868319999999999 14.868319999999999 14.868319999999999