Method for the detection of six active ingredients in pharmaceutical samples
A technology for active ingredients and samples, applied in the field of medicine, can solve the problems such as the lack of public reports on the content method of active ingredients in cold medicines, and achieve the effects of wide range of detection applications, wide range of detection applications and simple operation.
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Embodiment 1
[0046] In this embodiment, according to the configuration method and test conditions basically the same as the general method, 20 microliters of the reference substance solution was taken and injected into a high-performance liquid chromatograph for detection. The difference is that the mobile phase ratio used in this embodiment carries out gradient elution according to the following conditions:
[0047]
[0048]
[0049] The chromatogram that this embodiment detects obtains is as figure 1 shown. Depend on figure 1 The relevant information of each chromatographic peak can be obtained, as follows:
[0050] active ingredient name retention time (min) relative retention time Separation Phenylephrine Hydrochloride 4.17 0.38 - Acetaminophen 5.94 0.54 15.8 doxylamine succinate 7.10 0.65 13.0 Chlorpheniramine maleate 8.82 0.80 20.1 Guaifenesin 9.13 0.83 3.4 Dextromethorphan Hydrobromide 11.00 1.00 20.9
[00...
Embodiment 2
[0053] In this embodiment, 20 microliters of the sample solution was taken and injected into a high-performance liquid chromatograph for detection according to the test conditions basically the same as in the embodiment 1. The difference is that the drug sample used in this example is specifically DaytimeSevere Cold and Flu soft capsules, including acetaminophen components and guaiacol components.
[0054] The chromatogram of the sample solution of this embodiment is as figure 2 shown.
[0055] Depend on figure 2 It can be seen that the relevant information of the chromatographic peaks corresponding to the two components is shown in the following table:
[0056] active ingredient name retention time (min) relative retention time Acetaminophen 5.98 0.54 Guaifenesin 9.19 0.84
Embodiment 3
[0058] In this embodiment, 20 microliters of the sample solution was taken and injected into a high-performance liquid chromatograph for detection according to the test conditions basically the same as in the embodiment 1. The difference is that the samples used in this embodiment are specifically Nighttime Coldand Flu soft capsules, including doxylamine succinate components and dextromethorphan hydrobromide components.
[0059] The chromatogram of the sample solution of this embodiment is as image 3 shown.
[0060] Depend on image 3 It can be seen that the relevant information of the chromatographic peaks corresponding to the two components is shown in the following table:
[0061] active ingredient name retention time (min) relative retention time doxylamine succinate 7.20 0.65 Dextromethorphan Hydrobromide 11.06 1.00
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