Reference substance(Diluted 20 times)

Morphine

ColumnWelch Ultisil XB-C8 4.6×150mm,3μm (P/N: 00202-21041)
Mobile PhaseAcetonitrile-0.0025mol/L sodium heptanesulfonate-0.05mol/L potassium dihydrogen phosphate (5:18:18)
Detector220nm
Temperature24℃
Flow Rate0.7ml/min

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