aAll other chemicals were of analytical grade and were used without further purification. Phosphate buffer solu-tions (0.1 M PBS) with different pH (3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0 and 10.0) were prepared by mixing the stock solution of NaH2PO4 and Na2HPO4. 没有进一步洗净,其他化学制品...
Enhanced buffer capacity of fermentation broth and biohydrogen production from corn stalk with Na2HPO4/NaH2PO4 - ScienceDirectChaoyang Lu a cNadeem Tahir aWenzhe Li b cZhiping Zhang aDanping Jiang aSiyi Guo aJian Wang aKaixin Wang aQuanguo Zhang a b...
In order to keep the pH of the solution stable, which buffer system listed below is the best? A、0.1mol·L-1 HAc — 0.1mol·L-1 NaAc (pKa = 4.75) B、0.1mol·L-1 NH3·H2O — 0.1mol·L-1 NH4Cl (pKb = 4.75) C、 0.1mol·L-1 NaH2PO4 — 0.1mol·L-1 Na2HPO4(pKa2=7.21 )...