Construction Method and Application of Standard Fingerprint of Xiaoer Fupi Granules
A standard fingerprint, the technology of supporting the spleen in children, applied in the direction of instruments, measuring devices, scientific instruments, etc., to achieve the effect of good evaluation and control
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Embodiment 1
[0042] Example 1: Optimum fingerprint test of Xiaoer Fupi Granules.
[0043] Xiaoer Fupi Granules are made from 6 traditional Chinese medicines of Atractylodes macrocephala, tangerine peel, hawthorn, codonopsis pilosula, lotus seeds, and poria cocos. It has the effect of invigorating the spleen and stomach and helping digestion. In this experiment, the fingerprints of the prescription Chinese medicines were studied, and the varieties and quality of Chinese medicines could be grasped from the overall characteristics.
[0044] Instruments and reagents
[0045] LC-20AT high-performance liquid chromatography (Shimadzu Corporation of Japan); analytical balance (Mettler-Toledo Instruments (Shanghai) Co., Ltd.); constant temperature water bath (Jiangsu Jintan Zhongda Instrument Factory); electronic temperature regulation Electric heating mantle (Tianjin Tester Instrument Co., Ltd.); centrifuge (Jintan Zhongda Instrument Factory, Jiangsu); pipette (Baide Laboratory Instrument (Suzhou...
Embodiment 2
[0061] Embodiment 2: the investigation of chromatographic conditions
[0062] Selection of mobile phase: Ulimate XB-C18 was fixed as the chromatographic column, compared methanol-water, isocratic elution in different proportions, acetonitrile-0.1% phosphoric acid, isocratic elution in different proportions and different gradient elution systems. The results showed that ②Acetonitrile-0.1% phosphoric acid, gradient elution, had a good separation effect on various components of Xiao'er Fupi Granules, and could provide rich chromatographic information. The thermodynamic and compressibility factors of the methanol-water system can easily lead to baseline drift during gradient elution; and the column pressure of the methanol-water system is relatively high, while that of acetonitrile-water is relatively good. Therefore, acetonitrile-0.1% phosphoric acid was determined as the mobile phase.
[0063] Selection of gradient elution program: fix the chromatographic column as Ulimate XB-C...
Embodiment 3
[0070] Embodiment 3: the selection of wavelength
[0071] The detection wavelength was investigated by ultraviolet detector, and the chromatograms under the conditions of 220nm, 240nm, 260nm, 280nm, 300nm, 310nm, 320nm, 330nm, 340nm and 360nm were compared. After comparison, it is found that the maximum absorption wavelength of hesperidin, which is known as the marker component of Xiaoer Fupi Granules, is 283nm, but 280nm is not the best wavelength for fingerprints, because under this condition, the peak height and area of hesperidin are too large , other peaks are not obvious and cannot be identified, and the peak heights of the peaks in the spectrogram are inconsistent. When the detection wavelength is 330nm, the peak heights of the peaks in the spectrogram are coordinated, and all peaks can be identified. At this time, the spectrogram presents the most abundant information, so the detection wavelength is determined to be 330nm, see the attached Figure 3a and Figure 3b...
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