condition mean min max 12pM Fe 25.862824999999997 8.04445 43.6812 58pM Fe 11.761271428571428 10.638842857142857 12.8837 233pM Fe 12.048523333333334 12.048523333333334 12.048523333333334 1160pM Fe 6.588105357142858 1.847625 11.328585714285715 Dark 4.5818200000000004 0.0 9.163640000000001 Light 5.8114923076923075 5.8114923076923075 5.8114923076923075 Phloroglucinol 0.0 0.0 0.0