condition mean min max 12pM Fe 66.137075 58.1499 74.12424999999999 58pM Fe 76.88812142857142 73.55954285714286 80.2167 233pM Fe 91.9352 91.9352 91.9352 1160pM Fe 51.90295178571428 39.527775 64.27812857142857 Dark 68.36528666666666 58.67237333333333 78.0582 Light 40.40632307692308 40.40632307692308 40.40632307692308 Phloroglucinol 72.29249999999999 72.29249999999999 72.29249999999999