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Based on the following graph, the concentration of a solution of BSA showing an absorbance of 0.55 is A plot of absorbance against concentration 0.7 0.6 0.5 0.4 Absorbance at 280 nm 0.3 ۷ = 0.6632x: 0.0102 R2 = 0.9995 0.2 0.1 0 0 0.2 1.2 0.4 0.6 0.8 Concentration of BSA (mg/mL) 25 III sign 20.35 mg/ml 0.3 mg/ml