Fu Yan-wen
2008
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Journal
Applied Chemical Industry
Abstract
ARP-HPLC method for the determination of 1-cyclopropyl-6,7-difluoro-8-methyl-1,4-dihydro-4-oxoquinoline-3-ethyl carboxylate in its preparations was developed using C18 column.The mobile phase consisted of methanol and water(80 ∶20) and the column temperature was 40 ℃.The detection limit was 0.06 μg/mL.The detection wavelength was 254 nm,the recovery was 98.0%~99.8%,the RSD was 0.85%,the method is simple,fast and accurate.