Asarum medicinal material and quality control method of aristolochic acid A in tincture for reducing swellings and easing pains
A quality control method, the technology of aristolochic acid, applied in the field of medicine, can solve the problems of human nephrotoxicity and non-inclusion, and achieve the effects of improving detection sensitivity, reducing interference, and improving extraction efficiency
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Embodiment 1
[0031] Asarum
[0032] 1. Chromatographic conditions:
[0033] Chromatographic column: silica gel column bonded with octadecylsilane.
[0034] The composition of the mobile phase is: an aqueous solution containing 1ml / L phosphoric acid and 0.05mol / L sodium dihydrogen phosphate, acetonitrile, and tetrahydrofuran. The ratio of these three solutions is 65.4:26.6:8 as mobile phase A; acetonitrile as mobile phase B , carry out gradient elution according to the table below.
[0035]
[0036] Column temperature: 10-40°C.
[0037] Detection wavelength: 319nm
[0038] The number of theoretical plates should not be less than 4000 based on the peak A of aristolochic acid
[0039] 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 ml.
[0040] 3. Preparation of the test solution: take about 5.0 g of the powder of this product (passed through a No. 3 siev...
Embodiment 2
[0044] Test product: use swelling and pain-relieving tincture, a commercially available product, produced by Huahong Pharmaceutical Co., Ltd. of Guangxi Zhuang Autonomous Region, batch number: 20080703.
[0045] 1. Chromatographic conditions:
[0046] Chromatographic column: silica gel column bonded with octadecylsilane.
[0047] The composition of the mobile phase is: an aqueous solution containing 1ml / L phosphoric acid and 0.05mol / L sodium dihydrogen phosphate, acetonitrile, and tetrahydrofuran. The ratio of these three solutions is 65.4:26.6:8 as mobile phase A; acetonitrile as mobile phase B , carry out gradient elution according to the table below.
[0048]
[0049] Column temperature: 10-40°C.
[0050] Detection wavelength: 319nm
[0051] The number of theoretical plates should not be less than 4000 based on the peak A of aristolochic acid
[0052] 2. Preparation of the reference solution: Accurately weigh an appropriate amount of aristolochic acid A, add methanol...
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