常用缓冲溶液配制方法之欧阳科创编

发布时间:2023-04-09 06:19:38   来源:文档文库   
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欧阳科创编2021.02.05常用缓冲溶液的配制方法时间:2021.02.05创作:欧阳科1.甘氨酸–盐酸缓冲液(0.05mol/LX毫升0.2mol/L甘氨酸+Y毫升0.2mol/LHCI,再加水稀释至200毫升pH2.02.42.62.8X50505050Y44.032.424.216.8pH3.03.23.43.6X50505050Y11.48.26.45.0甘氨酸分子量=75.070.2mol/L甘氨酸溶液含15.01/升。2.邻苯二甲酸–盐酸缓冲液(0.05mol/LX毫升0.2mol/L邻苯二甲酸氢钾+0.2mol/LHCl,再加水稀释到20毫升pH(202.22.42.62.83.0X55555Y4.0703.9603.2952.6422.022pH(203.23.43.63.8X5555Y1.4700.9900.5970.263邻苯二甲酸氢钾分子量=204.230.2mol/L邻苯二甲酸氢溶液含40.85/3.磷酸氢二钠–柠檬酸缓冲液pH0.2mol/LNa2HPO4(毫升)0.401.242.183.174.114.940.1mol/L柠檬酸(毫升)10.6018.7617.8216.8315.8915.06pH0.2mol/LNa2HPO4(毫升)10.7211.1511.6012.0912.6313.220.1mol/L柠檬酸(毫升)9.288.858.407.917.376.782.22.42.62.83.03.25.25.45.65.86.06.2欧阳科创编2021.02.05
欧阳科创编2021.02.053.43.63.84.04.24.44.64.85.05.706.447.107.718.288.829.359.8610.3014.3013.5612.9012.2911.7211.1810.6510.149.706.46.66.87.07.27.47.67.88.013.8514.5515.4516.4717.3918.1718.7319.1519.456.155.454.553.532.611.831.270.850.55Na2HPO4分子量=14.980.2mol/L溶液为28.40/升。Na2HPO4·2H2O分子量=178.050.2mol/L溶液含35.01/升。C4H2O7·H2O分子量=210.140.1mol/L溶液为21.01/升。4.柠檬酸–氢氧化钠-盐酸缓冲液pH钠离子浓度mol/L0.200.200.200.200.350.450.38氢氧化钠(NaOH97%升)(克)(升)C6H8O7·H2OHCl(浓)210841601021083116102108310610210834510245144681028518610510266156126102.23.13.34.35.35.86.5使用时可以每升中加入1克克酚,若最后pH值有变化,再用少量50%氢氧化钠溶液或浓盐酸调节,冰箱保存。5.柠檬酸–柠檬酸钠缓冲液(0.1mol/LpH0.1mol/L柠檬酸(毫升)18.617.216.014.914.013.10.1mol/L柠檬酸钠(毫升)1.42.84.05.16.06.9pH0.1mol/L柠檬酸(毫升)8.27.36.45.54.73.80.1mol/L柠檬酸钠(毫升)11.812.713.614.515.316.23.03.23.43.63.84.05.05.25.45.65.86.0欧阳科创编2021.02.05

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