condition mean min max 12pM Fe 27.93865 27.8354 28.0419 58pM Fe 32.887185714285714 25.63657142857143 40.1378 233pM Fe 54.0684 54.0684 54.0684 1160pM Fe 36.93322380952381 9.583514285714285 64.28293333333333 Dark 57.789789999999996 34.0632 81.51638 Light 83.29380461538462 83.29380461538462 83.29380461538462 Phloroglucinol 16.88017 16.88017 16.88017