Method for separating and measuring contents of various components in Huoxiang Zhengqi oral liquid by HPLC method
A technology of Zhengqi oral liquid and content, which is applied in the directions of measuring device, material separation, analysis of materials, etc., can solve problems such as insufficient description of the content of components in Huoxiang Zhengqi oral liquid, and achieves high accuracy, quality assurance, and simple method. Effect
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Embodiment 1
[0078] 1. Reference substance stock solution
[0079] Accurately weigh the appropriate amount of glycyrrhizin coumarin, isoliquiritigenin, apiloliquiritin, naringerin rutin, liquiritin, and nobiletin, add chromatographic methanol and dissolve them to make 0.07450, 0.50002, 0.97600, 0.50010, 0.50000, 0.62700mg respectively / ml of the reference substance stock solution, stored in a refrigerator at 4°C for future use.
[0080] 2. Standard curve
[0081] Precisely draw the stock solution of glycyrrhizin coumarin reference substance under item 1), and dilute it successively to obtain 0.0075, 0.0037, 0.0019, 0.0009, 0.0006, and 0.0005 mg per 1 mL, to obtain 6 groups of reference substance solutions with different concentrations, numbered 1-6; Precisely draw the stock solution of isoliquiritigenin reference substance under item 1), and dilute it successively so that each 1mL contains 0.0250, 0.0125, 0.0063, 0.0031, 0.0016, 0.0008mg, and obtain 6 groups of reference substance solutio...
Embodiment 2
[0087] 1. Precision
[0088] Accurately measure the appropriate amount of 6 kinds of reference substance stock solutions, and dilute with methanol to obtain a mixed solution containing 0.002, 0.050, 0.005, 0.010, 0.050 and 0.003mg of the above 6 components per 1mL. Take 10 μL of the mixed solution, and measure it according to item "2.1" of Example 1. Six consecutive injections were made, and the peak area was recorded. Results The RSD values of the peak areas of glycyrrhizin, isoliquiritigenin, apiloliquiritin, naringerin, liquiritin, and nobiletin were 1.06%, 0.17%, 1.43%, 1.24%, 0.23%, and 0.15%, respectively. , the RSD values of the peak areas of the six components were all less than 3%, indicating that the precision of the instrument was good.
[0089] 2. Repeatability
[0090] Get 1 batch number and be the sample preparation need testing solution of 17080319, prepare sample by the method provided by the present invention, then dilute with methanol to obtain the mix...
Embodiment 3
[0096] Sample determination
[0097] Process 1 batch of samples according to the method of the present invention, measure according to embodiment 1 "2.1", adopt external standard method to calculate glycyrrhizin, isoliquiritigenin, apiloliquiritin, naringerin, liquiritin, Sichuan The content of dermoside was found to be 0.007%, 0.251%, 0.221%, 0.279%, 0.540% and 0.009%, respectively.
[0098] Table 2 Contents of 6 components in 10 batches of samples of Taiji Huoxiang Zhengqi Oral Liquid
[0099]
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