Bisoprolol fumarate:
P / N: Chenhang chromatography column 88182545 C18, 5u 250 × 4.6mm
Chromatographic conditions:
Mobile phase: acetonitrile: 0.05mol / L diammonium hydrogen phosphate (pH = 4.5) = 40: 60
Detection wavelength: 225nm Flow rate: 0.5ml / min
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