4-ethoxycarbonyl-3-ethoxyphenylacetic Acid and Its Isomers Test Report on Ultisil XB-C18

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Solution of main component

ColumnWelch Ultisil® XB-C18 4.6×250mm,5μm (P/N: 00201-31043)
Mobile Phase0.1% phosphoric acid aqueous solution / 10% tetrahydrofuran in methanol solution = 55/45
Detector215nm
Temperature30℃
Flow Rate1ml/min
Injection Volume10ul

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