condition mean min max 12pM Fe 7.35088 5.88176 8.82 58pM Fe 5.372238571428571 4.22862 6.515857142857143 233pM Fe 3.14426 3.14426 3.14426 1160pM Fe 6.245493273809524 4.616910833333334 7.874075714285714 Dark 5.096061000000001 4.18147 6.010652 Light 3.134699846153846 3.134699846153846 3.134699846153846 Phloroglucinol 24.80623 24.80623 24.80623