condition mean min max 12pM Fe 115.686275 102.94455 128.428 58pM Fe 77.13186428571429 56.43752857142857 97.8262 233pM Fe 59.1098 59.1098 59.1098 1160pM Fe 99.14508988095238 91.54787142857143 106.74230833333333 Dark 178.36595 114.682 242.0499 Light 266.68126153846157 266.68126153846157 266.68126153846157 Phloroglucinol 357.773 357.773 357.773