A Quantitative Detection Method of Jiuwei Xifeng Granule Components and Its Fingerprint Construction Method
A technology of Jiuwei Xifeng and detection method, which is applied in the field of analytical chemistry to achieve the effect of good linear relationship, accurate detection and stable baseline
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Embodiment 1 9
[0074] Example 1 Quantitative detection method for components of Jiuwei Xifeng Granules
[0075] 1. Chromatographic conditions and system adaptability test: Octadecylsilane bonded silica gel was used as filler (chromatographic column: Phenomenex GeminiC 18 , the column length is 250mm, the inner diameter is 4.6mm, and the particle diameter is 5μm); methanol is used as mobile phase A, and 0.1% triethylamine is used as mobile phase B, and the gradient elution is carried out according to the regulations in the table below; the flow rate is 1.0mL / min; the detection wavelength is 246nm; the column temperature is 35°C; the number of theoretical plates is not less than 5000 based on the rhynchophylline peak.
[0076] Table 1 Gradient elution program
[0077] time (minutes) Mobile phase A(%) Mobile phase B(%) 0~5 40 60 5~30 40→60 60→40 30~50 60→75 40→25 50~60 75 25
[0078] 2. Preparation of the reference substance solution: Accurately weig...
Embodiment 2 9
[0082] Example 2 Quantitative detection method for components of Jiuwei Xifeng Granules
[0083] 1. Chromatographic conditions and system adaptability test: Octadecylsilane bonded silica gel is used as filler (chromatographic column: Thermo syncronis C18 column, column length is 250mm, inner diameter is 4.6mm, particle size is 5μm); methanol Be mobile phase A, with 0.05% triethylamine as mobile phase B, carry out gradient elution according to the regulation in the table 1 of embodiment 1; Flow velocity is 1.2mL / min; Detection wavelength is 230nm; Column temperature 30 ℃; Number of theoretical plates Calculated according to rhynchophylline peak not less than 5000.
[0084] 2. Preparation of the reference substance solution: Accurately weigh the appropriate amount of the reference substance rhynchophylline, isorhynchophylline, dehydrorhynchophylline, and isodehydrorhynchophylline, add 80% ethanol to make 45.05 μg / mL of rhynchophylline , a mixed reference solution of isorhynchop...
Embodiment 3 9
[0087] Example 3 Quantitative Detection Method of Jiuwei Xifeng Granule Components
[0088] 1. Chromatographic conditions and system adaptability test: Octadecylsilane bonded silica gel is used as filler (chromatographic column: Agilent 5TC-C18 chromatographic column, column length is 250mm, inner diameter is 4.6mm, particle size is 5μm); Methanol is the mobile phase A, and 0.15% triethylamine is the mobile phase B, and carries out gradient elution according to the regulations in Table 1 of Example 1; the flow rate is 0.8mL / min; the detection wavelength is 260nm; the column temperature is 40°C; the theoretical plate The number is not less than 5000 based on the rhynchophylline peak.
[0089]2. Preparation of the reference substance solution: Accurately weigh the appropriate amount of the reference substance rhynchophylline, isorhynchophylline, dehydrorhynchophylline, and isodehydrorhynchophylline, add 80% ethanol to make 45.05 μg / mL of rhynchophylline , a mixed reference solu...
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