A method for detecting the content of various components in Ammeguasu oral solution by HPLC method
A technology for oral solution and content, which is used in measurement devices, material separation, and analysis of materials, etc., can solve problems such as inaccurate measurement results, and achieve the effects of fast analysis, improved tailing, and prevention of damage.
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[0039]1. Chromatographic conditions and system suitability test: use octadecylsilane bonded silica gel as a filler (ACE ExcelC18, 4.6mm×250mm, 5μm) chromatographic column; use phosphate buffer solution (containing sodium dihydrogen phosphate 30mmol / L , sodium octane sulfonate 2.50g / L, adjust pH to 3.0 with phosphoric acid)-methanol (90:10) is mobile phase A, with above-mentioned phosphate buffer solution-acetonitrile (25:75) as mobile phase B, according to the table 1 Carry out gradient elution, the flow rate is 1.0ml per minute, the column temperature is 30°C, and the detection wavelength is 220nm.
[0040] Table 1 Gradient elution
[0041]
[0042] 2. Preparation of the reference substance solution: Take an appropriate amount of paracetamol, dextromethorphan hydrobromide, guaiacol glyceryl ether, phenylephrine hydrochloride, sodium benzoate, and pepropropyl ester, weigh them accurately, and use mobile phase A Dissolve and quantitatively dilute to make about 325.0 μg of p...
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