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磷酸盐缓冲液(1)磷酸氢二钠–磷酸二氢钠缓冲液(0.2) pH0.2mol/LNa2HPO4(毫升)0.3mol/LNaH2PO4(毫升)pH0.2mol/LNa2HPO4(毫升)0.3mol/LNaH2PO4(毫升)5.85.96.06.16.26.36.46.56.66.76.86.98.010.012.315.018.522.526.531.537.543.549.555.092.090.087.785.081.577.573.568.562.556.551.045.07.07.17.27.37.47.57.67.77.87.98.061.067.072.077.081.084.087.089.591.593.094.739.033.028.023.019.016.013.010.58.57.05.3Na2HPO4·2H2O分子量=178.05,0.2mol/L溶液为85.61克/升。Na2HPO4·12H2O分子量=358.22,0.2mol/L溶液为71.64克/升。Na2HPO4·2H2O分子量=156.03,0.2mol/L溶液为31.21克/升。(2)磷酸氢二钠–磷酸二氢钾缓冲液(1/15mol/L) pH mol/L/15Na2HPO4(毫升)mol/L//15KH2PO4(毫升)pH mol/L//15Na2HPO4(毫升)mol/L//15KH2PO4(毫升)4.92 5.29 5.91 6.24 6.47 6.64 6.81 6.98 0.100.501.002.003.004.005.006.009.909.509.008.007.006.005.004.007.177.387.738.048.348.678.187.008.009.009.509.759.9010.003.002.001.000.500.250.100Na2HPO4·2H2O分子量=178.05,1/15M溶液为11.876克/升。KH2PO4分子量=136.09,1/15M溶液为9.078克/升。