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- W2355681214 abstract "Objective To establish a HPLC method for the determination of pseudoephedrine hydrochloride(Ⅰ),guaifenesin(Ⅱ) and dextromethorphan hydrobromide(Ⅲ) in the guaifenesin pseudoephedrine hydrochloride and dextromethorphan hydrobromide capsules.Methods The Diamonsil ODS column was used with a mobile phase of 0.03 mol·L~ -1 NaH 2PO 4 aqueous solution (adjusted to pH 3.0 with H 3PO 4)-methanol-acetonitrile (V∶V∶V=60∶35∶5).The UV detective wavelength was set at 207 nm.Results Phenacetin was used as the internal standard compound.The calibration curves were linear throughout the range of 6.2～43.1 mg·L~ -1(r= 0.999 3) for componentⅠ,20.0～140.0 mg·L~ -1( r= 0.999 0) for component Ⅱ and 2.0～14.0 mg·L~ -1( r= 0.999 9)for component Ⅲ,respectively.The average recoveries were 99.7%(RSD=0.4%),100.0%(RSD=0.4%) and 100.2%(RSD=1.0%),respectively.Conclusions The method is reliable for the quality control of guaifenesin,pseudoephedrine hydrochloride and dextromethorphan hydrobromide capsules." @default.
- W2355681214 created "2016-06-24" @default.
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- W2355681214 date "2005-01-01" @default.
- W2355681214 modified "2023-09-25" @default.
- W2355681214 title "Simultanenous determination of the contents of the three components in guaifenesin,pseudoephedrine hydrochloride and dextromethorphan hydrobromide capsules by HPLC" @default.
- W2355681214 hasPublicationYear "2005" @default.
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