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Beschreibung

Zwitterionic buffer active in the pH range of 6.5-8.0. Absorbance: <=0.04 at 260 nm, 1.0 M, H2O, pKa=7.2 at 20C., Absorbance (0.1 M, H2O, 260 nm and 280 nm):<=0.040., A zwitterionic buffer useful in the pH range of 6.5-7.9. Has a pKa of 7.20 at 25C.