condition mean min max 12pM Fe 36.460049999999995 33.5772 39.3429 58pM Fe 40.2382 35.2307 45.2457 233pM Fe 22.8205 22.8205 22.8205 1160pM Fe 23.560401190476192 22.483016666666668 24.637785714285716 Dark 12.204142 11.213583999999999 13.1947 Light 8.906373846153846 8.906373846153846 8.906373846153846 Phloroglucinol 5.3426 5.3426 5.3426