Determination of multi-index components, fingerprint construction and preparation method of Yigan Mingmu Oral Liquid
A kind of Mingmu oral liquid, multi-index technology, applied in the field of traditional Chinese medicine
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Embodiment 1
[0076] The processing of embodiment 1 sample
[0077] Yigan Mingmu oral liquid sample (for determination of index components): Accurately measure 1 mL of Yi Gan Ming Mu oral liquid (available from Guangxi Huibaoyuan Pharmaceutical Co., Ltd.), put it in a 10 mL volumetric flask, add methanol to dilute to 10 mL , shake well, weigh, sonicate for 10min (power 100W, frequency 40kHz, temperature 20 ℃), after standing to room temperature, weigh, make up the lost weight with methanol, and obtain the test solution (all test samples were prepared detected within 24 hours).
[0078] Sample of Yigan Mingmu Oral Liquid (for fingerprint determination): Take 5 mL of Yigan Mingmu Oral Liquid, add 2 times the volume ratio of water-saturated n-butanol for extraction, extract 3 times, combine the extracts, and recover the solvent under reduced pressure , redissolved in methanol, transferred to a 10mL measuring bottle, constant volume with methanol to the mark, and filtered through a microporous...
Embodiment 2
[0080] The determination of embodiment 2 detection conditions
[0081] 1. Determination of detection wavelength
[0082] 1. Measurement wavelength of each index component
[0083] High-performance liquid chromatography detects each index component: Chromatographic column: Inertsil ODS-SP chromatographic column (250mm * 46mm, 5 μ m); Mobile phase A acetonitrile, mobile phase B 0.05% (v / v) phosphoric acid aqueous solution, gradient elution, The elution gradient is shown in Table 3; the flow rate is 0.8mL min -1 ; Column temperature 35°C.
[0084] table 3
[0085] time (minutes)
[0086] Experimental results
[0087] The reference substance solution was detected by a diode array detector, and it was found that chlorogenic acid, ferulic acid and nobiletin had strong absorption at 325nm, luteolin had strong absorption at 348nm, and hesperidin had strong absorption at 284nm. Strong absorption, paeoniflorin has a strong absorption at 230nm. The diode array detector ca...
Embodiment 3
[0115] Example 3 Research on the content determination of each index component of Yigan Mingmu Oral Liquid
[0116] On the basis of the determination conditions of high performance liquid chromatography (HPLC) determined in Example 2, the determination of each index component of Yigan Mingmu Oral Liquid was studied in depth.
[0117] 1. Standard curve and linear range
[0118] Dilute the samples of each index component according to the concentrations shown in Table 7-1~7-6, and perform HPLC detection. The data results are shown in Table 7-1~7-6, and the standard curve is drawn in Table 8.
[0119] Table 7-1 Chlorogenic acid standard curve data
[0120] C (μg / mL)
2.22
4.44
6.66
8.88
11.1
2.22
A
122798
395149
663898
938840
1212218
122798
[0121] Table 7-2 Paeoniflorin standard curve data
[0122]
[0123] Table 7-3 Ferulic acid standard curve data
[0124]
[0125] Table 7-4 luteolin standard curve data
[0126]...
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