condition mean min max 12pM Fe 36.6155 27.1669 46.0641 58pM Fe 31.303128571428573 16.905957142857144 45.7003 233pM Fe 12.152899999999999 12.152899999999999 12.152899999999999 1160pM Fe 22.391427916666665 14.319155833333333 30.4637 Dark 16.159044 14.1766 18.141488 Light 15.752684615384615 15.752684615384615 15.752684615384615 Phloroglucinol 13.6011 13.6011 13.6011