condition mean min max 12pM Fe 33.443275 30.627650000000003 36.2589 58pM Fe 23.49160714285714 19.517714285714284 27.4655 233pM Fe 16.952 16.952 16.952 1160pM Fe 18.06228863095238 12.871905833333333 23.25267142857143 Dark 17.266379999999998 9.8199 24.71286 Light 24.22672907692308 24.22672907692308 24.22672907692308 Phloroglucinol 38.0525 38.0525 38.0525