PH6.5，0.05mol/L磷酸盐缓冲液；PH2.5，0.05mol/L甘氨酸盐酸配制

pH 0.05mol/L NaH2PO4(ml)? 0.05mol/L Na2HPO4(ml) 5.7? 93.5? 6.55.8? 92.0? 8.05.9? 90.0? 10.0 6.0? 87.7? 12.3 6.1? 85.0? 15.0 6.2? 81.5? 18.5 6.3? 77.5? 22.5 6.4? 73.5? 26.5 6.5? 68.5? 31.5 6.6? 62.5? 37.5 6.7? 56.5? 43.5 6.8? 51.0? 49.0 6.9? 45.0? 55.0 7.0? 39.0? 61.0 7.1? 33.0? 67.0 7.2? 28.0? 72.0 7.3? 23.0? 67.0 7.4? 19.0? 81.0 7.5? 16.0? 84.0 7.6? 13.0? 87.0 7.7? 10.5? 89.5 7.8? 8.5? 91.5 7.9? 7.0? 93.0 8.0? 5.3? 94.7

PH6.5，0.05mol/L磷酸盐缓冲液；PH2.5，0.05mol/L甘氨酸盐酸配制

有现成卖的，PH计厂家有。