High performance liquid chromatography analysis method for avanafil and preparation thereof
A technology of high-performance liquid chromatography and avanafil, which is applied in the field of drug analysis, can solve the problems of no literature reports on the analysis methods of raw materials and their preparations, and achieve the effects of good applicability, high feasibility, and good stability
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Embodiment 1
[0038] Avanafil Raw Material Related Substance Inspection
[0039] Instrument and chromatographic conditions:
[0040] Chromatographic column: Agilent C 18; 4.6mmX 150mm, 3.5um
[0041] Mobile phase: acetonitrile: 50mmol / L phosphate buffer = 40:60
[0042] Detection wavelength: 220nm
[0043] Flow rate: 1.0ml / min
[0044] Column temperature: 40°C
[0045] Injection volume: 20uL
[0046] High performance liquid chromatography: Shimadzu LC-20A, PDA detector
[0047] Experimental steps:
[0048] Solution preparation:
[0049] Get an appropriate amount of avanafil raw material drug, accurately weighed, add mobile phase to dissolve and dilute to make a solution containing about 0.5-1mg in every 1ml, and check the test solution as related substances; accurately measure 1ml of the test solution, Put in a 100ml measuring bottle, add mobile phase and dilute to the mark, shake well, and use as reference substance solution; precision measures need testing solution and reference s...
Embodiment 2
[0058] Determination of avanafil raw material content
[0059] Instrument and Chromatographic Conditions
[0060] Chromatographic column: Agilent C 18; 4.6mmX 150mm, 3.5um
[0061] Mobile phase: acetonitrile: 50mmol / L phosphate buffer = 60:40
[0062] Detection wavelength: 220nm
[0063] Flow rate: 1.0mL / min
[0064] Column temperature: 40°C
[0065] Injection volume: 20ul
[0066] Instrument: Japan Shimadzu LC-20A (PDA detector)
[0067] Solution preparation
[0068]Accurately weigh 10 mg of avanafil self-made raw material, put it in a 100ml volumetric flask, add an appropriate amount of mobile phase, shake to dissolve and dilute to the scale, shake well, and obtain the mother liquor of the test sample; accurately measure the mother liquor of the test sample 1ml, put In a 10ml measuring bottle, add mobile phase to dilute to the mark, shake well, and as a reference solution, accurately measure 20ul and inject it into a liquid chromatograph, and record the chromatogram; ...
Embodiment 3
[0076] Avanafil Tablet Related Substance Inspection
[0077] Instrument and chromatographic conditions:
[0078] Chromatographic column: Agilent C 18; 4.6mmX 150mm, 3.5um
[0079] Mobile phase: acetonitrile: 50mmol / L phosphate buffer = 40:60
[0080] Detection wavelength: 220nm
[0081] Flow rate: 1.0ml / min
[0082] Column temperature: 40°C
[0083] Injection volume: 20ul
[0084] Instrument: Japan Shimadzu LC-20A (PDA detector)
[0085] Solution preparation:
[0086] Take avanafil tablet, grind it to powder, take an appropriate amount of the ground powder, accurately weigh it, add mobile phase to dissolve and dilute it to make a solution containing about 0.5-1mg per 1ml, filter and take the subsequent filtrate as the relevant Substance inspection need testing solution; precision measures need testing solution 1ml, puts in 100ml measuring bottle, adds mobile phase and dilutes to scale, shakes up, as reference solution; precision measures need testing solution and each 2...
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