Method for measuring content of triamcinolone acetonide chloromycetin solution
A determination method, technology of triamcinolone acetonide acetate, applied in the field of content determination of triamcinolone acetonide chloramphenicol solution, can solve the problems of tedious and time-consuming, content control of naphazoline hydrochloride, unstable product quality, etc.
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Embodiment 1
[0109] Determine according to high performance liquid chromatography (Chinese Pharmacopoeia 2005 edition two appendix V D).
[0110] Chromatographic conditions and system suitability test use octadecylsilane bonded silica gel as filler, 0.2% sodium dodecyl sulfate (adjust the pH value to 3.5 with dilute phosphoric acid)-acetonitrile (50:50) as mobile phase; Wavelength: 237nm for 0~12min and 22~30min, 215nm for 12~22min. Take 30 μl of the system suitability test solution, inject it into the liquid chromatograph, and record the chromatogram. The separation degree of chloramphenicol and chloramphenicol diol should meet the requirements, and the number of theoretical plates should not be less than 4000 based on the peak of chloramphenicol.
[0111] Preparation of solution for system suitability test Take appropriate amount of chloramphenicol reference substance and chloramphenicol glycol substance reference substance, dissolve and dilute with mobile phase to make about 0.3mg of chlo...
Embodiment 2
[0114] Determine according to high performance liquid chromatography (Chinese Pharmacopoeia 2005 edition two appendix V D).
[0115] Chromatographic conditions and system suitability test use octadecylsilane bonded silica gel as filler, 0.25% sodium dodecyl sulfate (adjust the pH value to 2.5 with dilute sulfuric acid)-methanol (45:55) as mobile phase; detect Wavelength: 245nm for 0~12min and 22~30min, 223nm for 12~22min. Take 15 μl of the system suitability test solution, inject it into the liquid chromatograph, and record the chromatogram. The separation degree of chloramphenicol and chloramphenicol diol should meet the requirements, and the number of theoretical plates should not be less than 6000 based on the peak of chloramphenicol.
[0116] Preparation of solution for system suitability test Take appropriate amount of chloramphenicol reference substance and chloramphenicol glycol substance reference substance, dissolve and dilute with mobile phase to make about 0.3mg of ...
Embodiment 3
[0119] Determine according to high performance liquid chromatography (Chinese Pharmacopoeia 2005 edition two appendix V D).
[0120] Chromatographic conditions and system suitability test use octadecylsilane bonded silica gel as filler, 0.1% sodium dodecyl sulfate (adjust the pH value to 3.0 with dilute sulfuric acid)-acetonitrile (55:45) as mobile phase; detect Wavelength: 240nm for 0~12min and 22~30min, 220nm for 12~22min. Take 20 μl of the system suitability test solution, inject it into the liquid chromatograph, and record the chromatogram. The separation degree of chloramphenicol and chloramphenicol diol should meet the requirements, and the number of theoretical plates should not be less than 5000 based on the peak of chloramphenicol.
[0121] Preparation of solution for system suitability test Take appropriate amount of chloramphenicol reference substance and chloramphenicol glycol substance reference substance, dissolve and dilute with mobile phase to make about 0.3mg ...
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