condition mean min max 12pM Fe 352.61525 324.504 380.7265 58pM Fe 270.2416428571429 228.952 311.53128571428573 233pM Fe 97.8594 97.8594 97.8594 1160pM Fe 194.7103154761905 148.90791666666667 240.51271428571428 Dark 56.88779 47.8857 65.88988 Light 75.22653076923076 75.22653076923076 75.22653076923076 Phloroglucinol 386.268 386.268 386.268