condition mean min max 12pM Fe 36.403774999999996 20.786450000000002 52.0211 58pM Fe 30.297128571428573 9.434357142857143 51.1599 233pM Fe 8.389289999999999 8.389289999999999 8.389289999999999 1160pM Fe 23.015052202380954 2.769575833333333 43.26052857142857 Dark 12.524029 12.0761 12.971958 Light 12.331724846153847 12.331724846153847 12.331724846153847 Phloroglucinol 47.08883333333333 47.08883333333333 47.08883333333333