Standard chromatogram of content determination

ColumnWelch Ultisil XB-C8 4.6×250mm,5μm (P/N: 00202-31043)
Mobile PhasePotassium dihydrogen phosphate solution (take 10.54 g potassium dihydrogen phosphate, dissolved in 775 ml water, adjust the pH to 2.5 with phosphoric acid) – acetonitrile (775: 225)
Detector210nm
Temperature25℃
Flow Rate1ml/min
Injection Volume10ul

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