condition mean min max 12pM Fe 66.34062499999999 65.66895 67.0123 58pM Fe 62.013799999999996 51.1172 72.9104 233pM Fe 50.8776 50.8776 50.8776 1160pM Fe 47.576616666666666 27.564433333333334 67.58879999999999 Dark 38.17513 32.9316 43.41866 Light 36.9885 36.9885 36.9885 Phloroglucinol 28.8152 28.8152 28.8152