Construction method of hplc fingerprint of traditional Chinese medicine composition and quality detection method of traditional Chinese medicine composition
A fingerprint and construction method technology, applied in the field of quality inspection, can solve problems such as inability to comprehensively control product quality, and achieve the effect of avoiding singleness and one-sidedness and good reproducibility
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[0043] 2. Preparation of reference substance solution: Take appropriate amount of reference substances of naringin, neohesperidin, and hesperidin respectively, weigh them accurately, and use methanol to make reference substance solutions containing 80 μg, 80 μg, and 50 μg per 1 ml respectively.
[0044] 3. Chromatographic conditions: Octadecyl bonded silica gel is used as the filler chromatographic column; acetonitrile is used as mobile phase A, 0.1% formic acid solution is used as mobile phase B; column temperature is 20-40°C; flow rate is 1ml / min; The wavelength is 210-290nm.
[0045] 4. Determination: Precisely draw the test solution and inject it into a liquid chromatograph, measure according to high performance liquid chromatography, and obtain the fingerprint of the Chinese medicine composition.
[0046] In other specific embodiments of the present invention, the construction method of the HPLC fingerprint of Chinese medicine composition is characterized in that comprisi...
Embodiment 1
[0080] The determination of embodiment 1 chromatographic conditions
[0081] Detection wavelength:
[0082] Precisely draw 10 μl of the test solution, inject it into the high-performance liquid chromatograph, use a DAD detector, and examine the spectrum at a wavelength of 200nm to 400nm. Other conditions remain the same, according to the detection wavelength at which all chromatographic peaks in the three-dimensional scanning diagram appear maximum absorption. Results At the wavelength of 283nm, the number of chromatographic peaks was more, and all the chromatographic peaks showed the maximum absorption, and the separation effect between the chromatographic peaks was better.
[0083] mobile phase:
[0084] After checking the Chinese Pharmacopoeia 2015 edition and relevant data, other conditions remained the same. The mobile phase system was investigated: ①methanol-water; ②acetonitrile-water; ③acetonitrile-0.4% phosphoric acid solution; ④acetonitrile-0.1% formic acid solution...
Embodiment 2
[0136] Chromatographic conditions and system adaptability test use octadecyl bonded silica gel as the filler chromatographic column; use acetonitrile as mobile phase A, 0.1% formic acid solution as mobile phase B, and carry out gradient elution as shown in the table below; column temperature is 30°C ; The flow rate is 1ml / min; The detection wavelength is 283nm.
[0137] Table 8 mobile phase gradient table
[0138] time (minutes) Mobile phase A(%) Mobile phase B(%) 0~15 10→20 90→80 5~30 20 80 30~50 20→34 80→66 50~51 34→10 66→90 51-56 10 90
[0139] Preparation of reference substance solution: Take appropriate amount of reference substances of naringin, neohesperidin, and hesperidin respectively, weigh them accurately, and use methanol to make reference substance solutions containing 80 μg, 80 μg, and 50 μg per 1 ml, respectively.
[0140] Need testing solution preparation: get about 1g of sample powder, weigh accurately, accurate...
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