HPLC analysis method for hydroxychloroquine sulfate and related substances thereof
A technology for hydroxychloroquine sulfate and related substances, which is applied in the field of HPLC analysis of hydroxychloroquine sulfate and related substances, can solve the problems of small amount of impurities, complex mobile phase system, damage to instruments or chromatographic columns, etc., and achieves high accuracy and sensitivity. High, low cost effect
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Embodiment 1
[0051] Investigate the effect of different filter membranes on the test results
[0052] Prepare the solution of the hydroxychloroquine sulfate of 0.2mg / mL, centrifuge and get the supernatant (5000 rpm, centrifugal 5 minutes) and the microporous filter membrane of 0.45 μ m different materials (the size and pore diameter of polyvinylidene fluoride membrane PVDF) with centrifuge 25mm*0.45μm, the size and pore diameter of polytetrafluoroethylene membrane PTFE is 25mm*0.45μm, the size and pore diameter of polyamide Nylon is 25mm*0.45μm) filter. The solvent for dissolving hydroxychloroquine sulfate here is a solution containing perchloric acid (perchloric acid: acetonitrile; water=0.05:10:90; v / v / v).
[0053] Use YMC-Triart Phenyl 150*4.6mm ID S-3um, 12nm as the chromatographic column, the mobile phase is: 0.1% perchloric acid-acetonitrile for gradient elution, the elution program is:
[0054] time (min) A(%) B(%) 0.00 88.0 12.0 6.00 88.0 12.0 26.00 80...
Embodiment 2
[0061] Investigate the influence of solvent on the separation of hydroxychloroquine sulfate and its related substances.
[0062] Prepare a solution of 0.2 mg / mL hydroxychloroquine sulfate and related substances (concentration of impurity solution is 20 μg / mL), dissolve with different solvents a~d, and centrifuge to get the supernatant (5000 rpm, centrifuge for 5 minutes) ,carry out testing.
[0063] Solvent: a) H 2 O:ACN:HClO 4 =80:20:0.05(v / v / v); b) H 2 O:ACN:HClO 4 =90:10:0.05 (v / v / v); c) H 2 O: ACN=90:10 (v / v); d) H 2 O:ACN:HClO 4 =70:30:0.05 (v / v / v).
[0064] Use YMC-Triart Phenyl 150*4.6mm ID S-3um, 12nm as the chromatographic column, the mobile phase is: 0.1% perchloric acid-acetonitrile for gradient elution, the elution program is:
[0065] time (min) A(%) B(%) 0.00 88.0 12.0 6.00 88.0 12.0 26.00 80.0 20.0 31.00 65.0 35.0 36.00 65.0 35.0 37.00 50.0 50.0 40.00 50.0 50.0 40.10 88.0 12.0 45.00 88.0 1...
Embodiment 3
[0073] Investigate the influence of hydroxychloroquine sulfate concentration on the separation of hydroxychloroquine sulfate and its related substances
[0074] The hydroxychloroquine sulfate solution of preparation 0.5mg / mL (in the hydroxychloroquine sulfate crude drug that adopts in the embodiment all contains impurity 6 in table 1, namely hydroxychloroquine sulfate impurity D in the European Pharmacopoeia), centrifuge and get supernatant with centrifuge ( 5000 rpm, centrifuge for 5 minutes). The solvent dissolved here is a solution containing perchloric acid (perchloric acid:acetonitrile; water=0.05:10:90; v / v / v).
[0075] Use YMC-Triart Phenyl 150*4.6mm ID S-3um, 12nm as the chromatographic column, the mobile phase is: 0.1% perchloric acid-acetonitrile for gradient elution, the elution program is:
[0076]
[0077]
[0078] The detection wavelength is 220nm, the flow rate is 1mL / min, the column temperature is 25°C, and the injection volume is 10μL, and the chromatog...
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