Method for determining content of kaempferol-3-O-rutinoside in safflower
A technology of rutinoside and kaempferol, which is applied in the field of content detection of active ingredients of traditional Chinese medicines, can solve the problem that the content detection, separation and purification of kaempferol-3-O-rutinoside has not yet occurred, and no kaempferol-3-O- Determination of rutin content and other issues, to achieve the effect of good detection effect, low equipment requirements, and simple detection process
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Embodiment 1
[0035] A method for determining the content of kaempferol-3-O-rutinoside in safflower, using high performance liquid chromatography to measure the content of kaempferol-3-O-rutinoside in safflower medicinal materials, the specific steps are as follows:
[0036] A. Weigh kaempferol-3-O-rutinoside reference substance, and use 70% methanol as solvent to prepare concentrations of 0.0634mg / mL, 0.1585mg / mL, 0.317mg / mL, 0.4755 mg / mL and 0.634mg / mL Five parts of reference substance solution of mL;
[0037] B. Inject the five parts of reference substance solutions obtained through step A into the high-performance liquid chromatograph with an injection volume of 10 μL respectively to obtain the corresponding chromatograms of each reference substance solution. The conditions in the high-performance liquid chromatograph are:
[0038] Chromatographic column: C18 chromatographic column, the column length is 100mm, the inner diameter is 4.6mm, and the filter membrane pore size is 3.5um;
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Embodiment 2
[0047] In this example, the content of kaempferol-3-O-rutinoside in the safflower medicinal material with the batch number S201810005 was determined, and the samples were injected in parallel six times, and the rest were processed in the same way as in Example 1. The results are shown in Table 1. Show:
[0048]
[0049] It can be seen from Table 1 that the relative standard deviation (RSD) of this determination method is 0.161%, and the precision of the test method meets the requirements.
Embodiment 3
[0051] In this embodiment, the content of kaempferol-3-O-rutinoside in the safflower medicinal material whose batch number is S201810005 is determined, and six parts of the test solution are processed in parallel, and the samples are injected once respectively, and the rest are the same as in Example 1. The processing method, the results are shown in Table 2:
[0052]
[0053] It can be seen from Table 2 that the relative standard deviation RSD of this determination method is 0.870%, and the repeatability of the test method meets the requirements.
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