Establishment method of hplc fingerprint of Zhuang medicine Baihua Jiuliming
A technology of fingerprints and establishment methods, which is applied in the field of establishment of HPLC fingerprints of Zhuang medicine Baihua Jiuliming
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Embodiment 1
[0039] 1 Experimental materials and instruments
[0040] 1.1 Medicinal materials: place of origin and harvest time are shown in Table 3.
[0041] Table 3 Origin and harvest time of Baihua Jiuliming medicinal materials
[0042] Medicinal No. Source of medicinal materials (origin) harvest time 1 whith 2014.11 2 Nanning peak 2014.11 3 Bama 2014.11 4 Nanning peak 2014.03 5 Heaven waits 2015.11 6 Bama 2015.11 7 Beiliu 2015.11 8 Napo 2013.06 9 Chongzuo 2013.11 10 Nanning Tiger Ridge 2015.11 11 Beiliu 2016.10 12 Fangcheng 2015.11 13 Lu Chuan 2016.10
[0043] 1.2 Instruments: Agilent1260 high performance liquid chromatography (including G1311C quaternary pump, G1329B autosampler, G1316A column oven, G1315D DAD detector, Agilengt1260 chromatographic workstation (Agilent Technologies, USA)); medium-sized ultrasonic cleaner (Elma Schmidbauer GmbH, P300H); electronic balance (Sart...
Embodiment 2
[0054] Get 13 batches of Baihuajiuliming medicinal materials (medicinal material numbering 1-13), prepare need testing solution by the method under "2.3", measure by the chromatographic conditions under the "2.1" item and the measuring method under the "2.4" item, obtain 13 Batch sample HPLC fingerprint overlay, such as image 3 shown. Through the comparison of these 13 batches of HPLC spectra, the similarity evaluation is carried out to determine the characteristic common peaks: the fingerprints have 10 characteristic common peaks, and the retention time, the average value of the peak area and the proportion of the total peak area are summarized as follows:
[0055] Peak No. 1, retention time 2.726min, RSD% 0.66%, peak area 156.555, RSD% 47.01%; accounting for 1.520% of the total peak area;
[0056] Peak No. 2, retention time 3.483min, RSD% 0.17%, peak area 674.258, RSD% 90.55%; accounting for 6.544% of the total peak area;
[0057] Peak No. 3, retention time 4.599min, RSD%...
Embodiment 3
[0072] 3 Methodological investigation
[0073] 3.1 Precision experiment
[0074] Accurately draw the same test solution (prepared from Baihuajiuliming herb powder No. 1 according to the method under "2.3"), and inject 6 samples according to the chromatographic conditions under "2.1" and the determination method under "2.4" Second, record the fingerprint, see Figure 4 . Taking peak No. 6 (caffeic acid) as the reference peak, the relative retention time RSD value of each peak is calculated to be 0.01%-0.48%, and the relative peak area RSD value of each peak is 0.3%-2.04%. The correlation coefficients are shown in Table 6.
[0075] Table 6 Similarity results of precision experiment
[0076]
[0077] It can be seen from Table 6 that the correlation coefficients of precision experiments are all greater than 0.95, and the similarity counting results show that the instrument has good precision and meets the requirements of fingerprint detection.
[0078] 3.2 Stability experi...
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