英文摘要 |
A simple, rapid and reliable high performance liquid chromatographic method for simultaneous determination of compounds typically found in complex cold medicines (i.e. acetaminophen, bromvalerylurea, bucetin, caffeine, chlorpheniramine maleate, dextromethorphan HBr, ethoxybenzamide, guaifenesin, methylephedrine HCl, noscapine HCl) has been developed. Isocratic separation was performed using an Inertsil ODS-3V column (5 µm, 25 em × 4.6 mm i.d.) with a mobile phase: 0.2% triethylamine, 2% tetrahydrofuran in 0.1% H3PO4: CH3CN (85: 15; pH=2.70), flow rate 1.0 ml/min. An ultraviolet spectrophotometer was used as the detector at the wavelength of 205 nm. The precision and accuracy were satisfactory. The system can be used to assay the above compounds at typical cold medicine dosage forms.
本文提供一簡單、快速之逆相高效液相層析法,可同時鑑別十種感冒藥acetaminophen、bromvalerylurea、bucetin、caffeine、chlorpheniraminemaleate、dextromethorphan HBr、ethoxybenzamide、guaifenesin、methylephedrineHCl及noscapineHCl等成分。本法採用之分析管柱為Inertsil ODS-3V column(5μm,250 × 4.6mm),移動相組成為含2%tetrahydrofuran、0.2% triethylamine之0.1%H3PO4水溶液:CH3CN(85 : 15)混液,以磷酸調整pH至2.70,移動相之流速為1.0 ml/min,偵測器係利用紫外光分光光度計,波長設至205 nm。本法以bucetin為內部標準品,可以於50分鐘內完成上述十種感冒藥成分之分離,經確效結果,分離率(Rs)為1.63~9.08,其標準曲線線性良好、精密度及準確度頗佳,可應用此方法分析、定量市售檢體,足見其實用性。 |