吸光度的加和性实验及水中微量Cr（ⅵ）和Mn（ⅶ）的同时测定河北工业大学0#000001#0.0002000.0270.435制药C141班2#0.0003000.0440.6683#0.0004000.0580.9062016年4月20日4#0.001205#0.001606#0.00200浓度C（mol/l）吸光度A1（λ=440nm）吸光度A2（λ=545nm）吸光度A3（λ=440nm）吸光度A4（λ=545nm）0.4960.0070.6720.0080.8510.010吸光度A1.2y = 2278.x R² = 0.9981.110.90.80.70.60.5y = 444.2x R² = 0.999吸光度A1（λ=440nm）吸光度A2（λ=545nm）吸光度A3（λ=440nm）吸光度A4（λ=545nm）线性(吸光度A1（λ=440nm）)线性(吸光度A2（λ=545nm）)0.40.30.2线性(吸光度A3（λ=440nm）)y = 153.7x R² = 0.993线性(吸光度A4（λ=545nm）)0.1000.00050.001y = 12.35x R² = 0.9970.00150.0020.0025浓度C（mol/L）
