condition mean min max 12pM Fe 33.954075 29.9176 37.99055 58pM Fe 24.974464285714284 23.6573 26.29162857142857 233pM Fe 27.3463 27.3463 27.3463 1160pM Fe 18.692592857142856 14.8734 22.511785714285715 Dark 16.217513333333333 13.9677 18.467326666666665 Light 10.011149230769231 10.011149230769231 10.011149230769231 Phloroglucinol 20.4515 20.4515 20.4515