Extraction method of aristolochic acid A in swelling dispersing and pain relieving tincture
An extraction method and technology of aristolochic acid, applied in the field of medicine, can solve the problems of affecting the content determination effect and having many impurities in the extract
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Embodiment 1
[0023] Test product: using anti-swelling and analgesic tincture, a commercially available product, produced by Huahong Pharmaceutical Co., Ltd. of Guangxi Zhuang Autonomous Region, batch number: 20080303
[0024] The specific operation of the inspection of the swelling and pain-relieving tincture is as follows:
[0025] 1. Chromatographic conditions:
[0026] Chromatographic column: silica gel column bonded with octadecylsilane;
[0027] The mobile phase is composed of: 0.1% ammonium carbonate solution-acetonitrile with a mass percentage of 10% hydrochloric acid solution to adjust the pH to 7, wherein the volume ratio of the solution to acetonitrile is 70:30;
[0028] Flow rate: 0.8ml / min. ;
[0029] Detection wavelength: 240nm.
[0030] 2. Preparation of the reference solution: Accurately weigh an appropriate amount of aristolochic acid A, add methanol to make a solution containing 1 μg of aristolochic acid A per milliliter.
[0031] 3. Preparation of the test solution: ...
Embodiment 2
[0035] Test product: using anti-swelling and analgesic tincture, a commercially available product, produced by Huahong Pharmaceutical Co., Ltd. of Guangxi Zhuang Autonomous Region, batch number: 20090201
[0036] The specific operation of the inspection of the swelling and pain-relieving tincture is as follows:
[0037] 1. Chromatographic conditions:
[0038] Chromatographic column: silica gel column bonded with octadecylsilane;
[0039] The mobile phase is composed of: 0.1% ammonium carbonate solution-acetonitrile with a mass percentage of 10% hydrochloric acid solution to adjust the pH to 7, wherein the volume ratio of the solution to acetonitrile is 80:20;
[0040] Flow rate: 1ml / min. ;
[0041] Detection wavelength: 250nm.
[0042] 2. Preparation of the reference solution: Accurately weigh an appropriate amount of aristolochic acid A, add methanol to make a solution containing 2 μg of aristolochic acid A per milliliter.
[0043] 3. Preparation of the test solution: Pr...
Embodiment 3
[0047] Test product: using anti-swelling and pain-relieving tincture, a commercially available product, produced by Huahong Pharmaceutical Co., Ltd. of Guangxi Zhuang Autonomous Region, batch number: 20100804
[0048] The specific operation of the inspection of the swelling and pain-relieving tincture is as follows:
[0049] 1. Chromatographic conditions:
[0050] Chromatographic column: silica gel column bonded with octadecylsilane;
[0051] The mobile phase is composed of: 0.1% ammonium carbonate solution-acetonitrile with a mass percentage of 10% hydrochloric acid solution to adjust the pH to 7, wherein the volume ratio of the solution to acetonitrile is 90:10;
[0052] Flow rate: 1.5ml / min. ;
[0053] Detection wavelength: 260nm.
[0054] 2. Preparation of the reference solution: Accurately weigh an appropriate amount of aristolochic acid A, add methanol to make a solution containing 5 μg of aristolochic acid A per milliliter.
[0055] 3. Preparation of the test solutio...
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