pH7缓冲溶液

（二）0.067（1/15）Mol/L磷酸缓冲液1．1/15Mol/L磷酸二氢钾溶液的配制：称取磷酸二氢钾（KH2PO4，A．R．）9.08g，用蒸馏水溶解后，倾入1000ml容量瓶内，再稀释至刻度（1000ml）。2．1/15Mol/L磷酸氢二钠溶液的配制：称取无水磷酸氢二钠（Na2HPO4，A.R.）9.47g（或者Na2HPO4·2H2O11.87g）用蒸馏水溶解后，放入1000ml容量瓶内，再加蒸馏水稀释至刻度（1000ml）。3．按附表的比例，配制成不同pH值的缓冲溶液。附表1磷酸盐缓冲液配制法（单位：毫升）pH1/15Mol/LNa2HPO41/15Mol/LKH2PO4pH1/15Mol/LNa2HPO41/15Mol/LKH2PO45.88.092.07.166.623.45.99.990.17.272.028.06.012.287.87.376.823.26.115.384.77.380.819.26.218.681.47.584.115.96.322.477.67.687.013.06.426.773.37.789.410.66.531.868.27.891.58.56.637.562.57.993.26.86.743.556.58.894.75.36.849.650.48.195.84.26.955.444.68.297.03.07.061.138.98.498.02.0