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- W2370320025 abstract "OBJECTIVE To establish an LC-MS/MS method for simultaneous determination of piroxicam,prednisone acetate,diclofenac sodium and ibuprofen,which were illegally added to the Gutoubang capsules.METHODS A Kromasil C18 column was used(250 mm×4.6 mm,5 μm) with the mobile phase of acetonitrile-20 mmol·L-1 ammonium acetate(0.1% acetic acid)(43:57).The detective wavelengths were 330,240,280,220 nm.The flow rate was 0.8 mL·min-1 and the column temperature was 45 ℃.The content determination was based on high-performance liquid chromatography with electrospray ionization tandem mass(HPLC-ESI-MS/MS) spectrometric detection in positive and negative ionization mode.RESULTS Piroxicam,prednisone acetate,diclofenac sodium and ibuprofen were found in the sample.CONCLUSION The method is selective,sensitive and suitable for the quantitative determination of illegal additives including piroxicam,prednisone acetate,diclofenac sodium and ibuprofen in the Gutoubang capsules." @default.
- W2370320025 created "2016-06-24" @default.
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- W2370320025 date "2012-01-01" @default.
- W2370320025 modified "2023-09-23" @default.
- W2370320025 title "Simultaneous determination of four kinds of illegal chemicals added in Gutoubang capsule by HPLC-MS/MS" @default.
- W2370320025 hasPublicationYear "2012" @default.
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