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- W2367034634 abstract "Objective To determine simultaneously the contents of ephedrine and pseudoephedrine in ephedra herb and its compound preparations by high-performance liquid chromatography. Method The detection was performed on a reversed-phase C_ 18 column(4.6 mm ×150 mm,5 μm)at the wavelength of 210 nm. The mobile phase (methanol -0.01 mol/L phosphate buffer, pH 5.8) in gradient elution was pumped at a flow rate of 1.0 mL/min. Results The assay exhibited a linear range of 1.01～10.1 μg for ephedrine and 0.97～9.7 μg for pseudoephedrine. The average recoveries were 100.14% and 99.16% for ephedrine and pseudoephedrine, respectively. Conclusion The method is rapid, accurate and reliable for the quality control of ephedra herb and its compound preparations." @default.
- W2367034634 created "2016-06-24" @default.
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- W2367034634 date "2005-01-01" @default.
- W2367034634 modified "2023-09-28" @default.
- W2367034634 title "Detection of ephedrine and pseudoephedrine in ephedra herb and its compound preparations by high-performance liquid chromatography" @default.
- W2367034634 hasPublicationYear "2005" @default.
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