Method for separating and measuring dapagliflozin crude drug related substance through HPLC
A technology related to substances and raw materials, applied in the field of analytical chemistry, can solve the problems of no fast, simple and accurate analysis and detection of Dapagliflozin raw materials, and achieve the effect of accurate and reliable operation, high sensitivity and strong specificity
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Embodiment 1
[0049] Chromatographic conditions:
[0050] Chromatographic column: Agilent 5TC-C18(2) 250×4.6mm
[0051] Mobile Phase A: Water
[0052] Mobile Phase B: Acetonitrile
[0053] Column temperature: 30°C
[0054] Flow rate: 1.0ml / min
[0055] Detection wavelength: 224nm
[0056] Injection volume: 20μl
[0057] The gradient elution program is:
[0058] Table 1 Gradient elution program
[0059] time, minutes
Mobile phase A, volume %
Mobile phase B, volume %
0
72
28
10
72
28
40
10
90
55
10
90
56
72
28
70
72
28
[0060] Solution preparation:
[0061] Impurity reference substance stock solution: take impurity A reference substance, impurity B reference substance, impurity C reference substance, impurity D reference substance, impurity E reference substance, impurity F reference substance, impurity G reference substance, impurity H reference substance, impurity I control substance About ...
Embodiment 2
[0071] Chromatographic conditions:
[0072] Chromatographic column: Agilent 5TC-C18(2) 250×4.6mm
[0073] Mobile Phase A: Water
[0074] Mobile Phase B: Acetonitrile
[0075] Column temperature: 30°C
[0076] Flow rate: 1.0ml / min
[0077] Detection wavelength: 224nm
[0078] Injection volume: 20μl
[0079] The gradient elution program is:
[0080] Table 3 Gradient elution program
[0081] time, minutes
Mobile phase A, volume %
Mobile phase B, volume %
0
72
26
10
72
26
43
10
90
55
10
90
56
72
26
70
72
26
[0082] Solution preparation:
[0083] Impurity reference substance stock solution: take impurity A reference substance, impurity B reference substance, impurity C reference substance, impurity D reference substance, impurity E reference substance, impurity F reference substance, impurity G reference substance, impurity H reference substance, impurity I control substance Abou...
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