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Beschreibung

A zwitterionic buffer useful in the pH range of 6.5-7.9. Has a pKa of 7.20 at 25C., One of the zwitterionic buffers active in the pH range of 6.5 to 8.0 (absorbance: <=0.05 at 260 nm, 1.0 M, H2O). Has a pK,sub>a of 6.95-7.24 at 20C., Absorbance (1.0 M, H2O, 260 nm):<=0.05.