Establishment of Fingerprints of Herbal Jelly and Its Fingerprints
A technology of fingerprint and herbal materials, which is applied in the field of quality control of traditional Chinese medicinal materials, and achieves the effects of high precision, good reproducibility and simple method.
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Embodiment 1
[0058] Example 1: Detect the fingerprints of jelly jelly
[0059] 1. Instruments and reagents
[0060] 1.1 Instrument One hundred thousandth electronic balance (Sartorius CP225D, German company Sartorius); Diane P580 high-performance liquid chromatography: P580 Pump, ASI-100 Automated Sample Injector, PDA-100 Photodiode Array Detector), Chromeleon chromatography workstation; universities Liquid phase column: Dikma Diamonsil C 18(2) column (250×4.6mm, 5μm).
[0061] 1.2 Reagents Caffeic acid reference substance; acetonitrile (chromatographically pure), formic acid (analytical pure), ultrapure water.
[0062] 2. High performance liquid chromatography
[0063] 2.1 Chromatographic conditions: The chromatographic column is filled with octadecylsilane bonded silica gel; the mobile phase is a gradient eluent composed of 2% formic acid and acetonitrile; the column temperature is 25°C; the detection wavelength is 320nm; the flow rate is 0.8mL min -1 ; Analysis time is 95min. Injec...
Embodiment 2
[0070] Embodiment Two: Detect the fingerprints of 10 batches of herbal jelly
[0071] Get 10 batches of jelly herbal medicinal materials, detect by the conditions of Example 1, get the HPLC collection of illustrative plates of 10 batches of samples, as figure 2 shown. Through the comparison of 10 batches of HPLC chromatograms, the similarity evaluation is carried out, and the characteristic common peaks are determined:
[0072] There are 10 common peaks in the fingerprint spectrum. The retention time of the spectrum, the average value of the peak area and the total peak area are summarized as follows:
[0073] For peak No. 1, the average retention time RT was 15.58min, the RSD was 0.03%, the peak area was 448.251, and the RSD was 57.12%, accounting for 4.98% of the total peak area.
[0074] For peak No. 2, the average retention time RT is 27.63min, the RSD is 0.03%, the peak area is 968.365, and the RSD is 41.74%, accounting for 10.76% of the total peak area.
[0075] For ...
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