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- W1498678482 abstract "Abstract A simple and rapid gas chromatographic (GC) method has been developed for the simultaneous determination of combinations of acetaminophen, phenylpropanolamine hydrochloride, guaifenesin, pseudoephedrine hydrochloride, caffeine, chlorpheniramine maleate, and dextromethorphan hydrobromide in cough and cold tablets and syrups. After extraction of the analyte with alkaline ethyl acetate, 2 μL extract was injected (splitting ratio of 50:1) into a gas chromatograph equipped with a CBP1-M25-025 fused silica capillary column (25 m × 0.22 mm; film thickness, 0.25 μm). The column temperature was held at 150°C for 5 min, increased to 175°C at 3°C/min, and increased to 270°C at 10°C/min. The temperatures of the flame ionization detector and injector were maintained at 300°C. The GC method is inexpensive, rapid, accurate, and precise, and thus it can be used for routine analysis of tablet and syrup preparations in quality control laboratories of pharmaceutical companies." @default.
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- W1498678482 date "2005-07-01" @default.
- W1498678482 modified "2023-10-03" @default.
- W1498678482 title "Simultaneous Determination of Some Active Ingredients in Cough and Cold Preparations by Gas Chromatography, and Method Validation" @default.
- W1498678482 doi "https://doi.org/10.1093/jaoac/88.4.1093" @default.
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