各种浓度各种PH的PBSTrisHCl缓冲液配制

一、PBS缓冲液1.1母液的配制：0.2MNa2HPO4：称取71.6gNa2HPO4-12H2O，溶于1000ml水0.2MNaH2PO4：称取31.2gNaH2PO4-2H2O，溶于1000ml水1.2不同PH值PBS配制各种PH值的0.2MPBS（100ml)配方：pH0.2MNaH2PO4（ml）0.2MNa2HPO4（ml）5.793.56.55.89285.990106.087.712.36.185156.281.518.56.377.522.56.473.526.56.568.531.56.662.537.56.756.543.56.851496.945557.038627.133677.228727.323777.419ml81ml7.516847.613877.710.50.57.88.591.57.97938.05.394.7以配制100ml0.2MPBS为例，先配制母液，按照配方表分别取19ml0.2mol/L的NaH2PO4和81ml0.2mol/L的Na2HPO4,混合即可。1.3不同浓度PBS的配制只需将0.2MPBS按相应比例适当稀释即可，如：0.1MPBS（PH=7.4）：取500ml0.2MPBS，加水稀释至1000ml即可。0.01MPBS（PH=7.4）：取50ml0.2MPBS，加水稀释至1000ml即可。0.02MPBS（PH=7.4）：取100ml0.2MPBS，加水稀释至1000ml即可。若需要NaCl的话，加入NaCl至0.9%（g/100ml）即可。二、Tris-HCl缓冲液某一特定pH值的0.05mol/LTris缓冲液的配制：将50ml0.1mol/LTris碱溶液与配方表中所示相应体积（单位：ml）的0.1mol/LHCl混合，加水将体积调至100ml即可。(至于配制0.1MHCl就是8.58ml浓盐酸用蒸馏水定容到1000ml啦)各种ph值的tris缓冲液的配制所需ph值（25℃）0.1mol/lHCl的体积/ml7．145．77．244．77．343．47．442．07．540．37．638．57．736．67．834．57．932．08．029．28.126.28.222.98.319.98.417.28.514.78.612.48.710.38.88.58.97.0