Resina draconis detecting method
A detection method, the technology of dragon's blood, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problem that the detection method cannot fully reflect the quality of dragon's blood, and achieve good repeatability and accurate determination
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Embodiment 1
[0139] Accurately weigh 0.5g of dragon's blood powder sample, put it in a stoppered conical flask, add 50mL of anhydrous methanol precisely into the stoppered conical flask, and use 250W, 40KHz ultrasonic waves to extract the components of the obtained mixed solution After 30 minutes, cool the solution after component extraction to 10°C, filter the cooled solution, and take the filtrate to pass through a 0.22 μm filter membrane to obtain the solution to be tested;
[0140] The solution to be tested obtained by the above-mentioned preparation is carried out liquid chromatographic detection, and the detection condition is specifically:
[0141] Octadecylsilane bonded silica gel is used as column filler;
[0142] The column model is Phenomenex Kinetex 2.6u C18 100A, the column length is 100mm, the inner diameter is 4.6mm, and the particle size is 2.6μm;
[0143] The column temperature of the chromatographic column is 40°C;
[0144] With acetonitrile as mobile phase A, with ultr...
Embodiment 2
[0154] The fingerprint of the solution to be tested is detected by the technical solution in Example 1, and the content of the main components in the solution to be tested obtained in Example 2 is calculated according to the obtained fingerprint; the difference is that the present embodiment adopts the method of reflux extraction to replace Ultrasonic extraction in embodiment 1, the time of reflux extraction is 60 minutes. Test results such as figure 2 and as shown in Table 1, figure 2 It is the fingerprint of the solution to be tested obtained in Example 2 of the present invention.
[0155] Table 1 The content of main components in the solution to be tested obtained in Example 1 and Example 2 of the present invention
[0156]
Embodiment 3
[0158] After the dragon blood B is accurately weighed, an aqueous solution of ethanol with a mass percent concentration of 70% is added thereto to prepare a reference solution containing 50 μg of dragon blood B per milliliter.
[0159] The reference substance solution prepared above is carried out liquid chromatographic detection according to the detection conditions described in Example 1, and the fingerprint of the reference substance solution that is detected is as follows: image 3 as shown, image 3 It is the fingerprint spectrum of dragon blood B obtained in Example 3 of the present invention.
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