condition mean min max 12pM Fe 12.255225 11.4675 13.042950000000001 58pM Fe 7.391435 5.76942 9.01345 233pM Fe 8.55599 8.55599 8.55599 1160pM Fe 3.470327142857143 3.07695 3.863704285714286 Dark 6.0531706666666665 3.90348 8.202861333333333 Light 3.887211769230769 3.887211769230769 3.887211769230769 Phloroglucinol 4.45871 4.45871 4.45871