condition mean min max 12pM Fe 0.9639225 0.947492 0.980353 58pM Fe 0.6894325714285714 0.419193 0.9596721428571429 233pM Fe 0.9846940000000001 0.9846940000000001 0.9846940000000001 1160pM Fe 0.6156975357142858 0.2513375 0.9800575714285714 Dark 1.6917053666666666 1.53964 1.8437707333333333 Light 0.6500693846153847 0.6500693846153847 0.6500693846153847 Phloroglucinol 0.948913 0.948913 0.948913