Quality control method for mulberry chrysanthemum granules
A detection method, the technology of Xia Sangju, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of single composition, ambiguity of quality control of Xia Sangju granules, etc., and achieve the effect of ensuring effectiveness
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Embodiment 1
[0069] Adopt high performance liquid chromatography to measure the content of rosmarinic acid, comprise the following steps:
[0070] 1. Preparation of reference solution
[0071] Accurately weigh an appropriate amount of rosmarinic acid reference substance and dissolve it in methanol to obtain a reference substance solution with a concentration of 0.22 μg / μL.
[0072] 2. Preparation of the test solution
[0073] Weigh about 2.5g of Xiasangju granules, weigh them accurately, add 10mL of methanol, weigh, ultrasonicate for 30min, take it out, let it stand, let it cool, make up the weight, filter through a microporous membrane, and use it as the test sample.
[0074] 3. Determination by liquid chromatography
[0075] Accurately draw the reference substance solution and the test solution, respectively, and inject them into the liquid chromatograph for determination.
[0076] Chromatographic conditions
[0077] Chromatographic column: Agilent Eclipse XDB-C18 (4.6mm×250mm, 5μm)...
Embodiment 2
[0100] Adopt high performance liquid chromatography to measure the content of rosmarinic acid, comprise the following steps:
[0101] 1. Preparation of reference substance solution: same as in Example 1.
[0102] 2. Preparation of the test solution: Weigh about 2.5g of Xiasangju granules, accurately weigh, add 10mL of methanol, weigh, ultrasonicate for 60 minutes, take it out, let it stand, let cool, make up the weight, filter through a microporous membrane, and use it as the test solution Taste.
[0103] 3. Determination by liquid chromatography
[0104] Accurately draw the reference substance solution and the test solution, respectively, and inject them into the liquid chromatograph for determination.
[0105] Chromatographic conditions:
[0106] Chromatographic column: Agilent Eclipse XDB-C18 (4.6mm×250mm, 5μm);
[0107] Flow rate: 1.5mL.min -1 ;
[0108] Detection wavelength: 335nm;
[0109] Column temperature: 25°C;
[0110] Mobile phase: mobile phase A is aceton...
Embodiment 3
[0113] Adopt high performance liquid chromatography to measure the content of rosmarinic acid, comprise the following steps:
[0114] 1. Preparation of reference substance solution: same as in Example 1.
[0115] 2. Preparation of the test solution: Weigh about 2.5g of Xiasangju granules, accurately weigh, add 10mL of methanol, weigh, ultrasonicate for 15min, take it out, let it stand, let it cool, make up the weight, filter it through a microporous membrane, and use it as the test solution. Taste.
[0116] 3. Determination by liquid chromatography
[0117] Accurately draw the reference substance solution and the test solution, respectively, and inject them into the liquid chromatograph for determination.
[0118] Chromatographic conditions:
[0119] Chromatographic column: Agilent Eclipse XDB-C18 (4.6mm×250mm, 5μm);
[0120] Flow rate: 0.5mL.min -1 ;
[0121] Detection wavelength: 325nm;
[0122] Column temperature: 40°C;
[0123] Mobile phase: mobile phase A is acet...
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