condition mean min max 12pM Fe 12.918399999999998 12.4962 13.340599999999998 58pM Fe 20.657124285714286 11.4385 29.875748571428574 233pM Fe 9.780833333333334 9.780833333333334 9.780833333333334 1160pM Fe 5.951922767857143 1.99350125 9.910344285714286 Dark 4.268898999999999 4.20121 4.336588 Light 4.279301846153846 4.279301846153846 4.279301846153846 Phloroglucinol 31.6109 31.6109 31.6109