A method of measuring the content of astragaloside in heart-tonifying pulse-restoring granules
A determination method, the technology of astragaloside IV, is applied in the field of determination of astragaloside IV content in Yixin Fumai Granules, which can solve the problems that cannot fully reflect the quality of the product
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Embodiment 1
[0143] Example 1 Take Yixin Fumai Granules numbered as Test 3, and measure the content of astragaloside IV
[0144] Step 1, preparation of reference substance solution
[0145] Take an appropriate amount of astragaloside IV reference substance, weigh it accurately, add 70% methanol to make it contains 0.20 mg of astragaloside IV per 1 ml.
[0146] Step 2, the preparation of the test solution, the method is as follows: take about 3.0 g of Yixin Fumai Granules, accurately weighed, put it into a 50ml Erlenmeyer flask, add 15ml of 4% ammonia water precisely, and ultrasonically treat it for 25 minutes to fully dissolve it. Centrifuge (3000 rpm, 10min), pipette 10ml of the supernatant precisely, and pass through the treated C18 solid phase extraction column (500mg, first eluted with 5ml of methanol, then eluted with 5ml of water) at a speed of 1ml / min , eluted with 5ml of water, discarded the eluent, then slowly eluted with 2ml of methanol into a 2ml volumetric flask, diluted with ...
Embodiment 2
[0150] Example 2 Take the Yixin Fumai Granules numbered as Test 1, and measure the content of Astragaloside IV
[0151] Step 1, preparation of reference substance solution
[0152] Take an appropriate amount of astragaloside IV reference substance, weigh it accurately, add 70% methanol to make it contains 0.16-0.24mg of astragaloside IV per 1ml.
[0153] Step 2, the preparation of the test solution, the method is as follows: take about 3.0 g of Yixin Fumai Granules, accurately weighed, put it into a 50ml Erlenmeyer flask, add 15ml of 4% ammonia water precisely, and ultrasonically treat it for 25 minutes to fully dissolve it. Centrifuge (3000 rpm, 10min), pipette 10ml of the supernatant precisely, and pass through the treated C18 solid phase extraction column (500mg, first eluted with 5ml of methanol, then eluted with 5ml of water) at a speed of 1ml / min , eluted with 5ml of water, discarded the eluent, then slowly eluted with 2ml of methanol into a 2ml volumetric flask, dilute...
Embodiment 3
[0157] Example 3 Take the Yixin Fumai Granules numbered as Test 2, and measure the content of Astragaloside IV
[0158] Step 1, preparation of reference substance solution
[0159] Take an appropriate amount of astragaloside IV reference substance, weigh it accurately, add 70% methanol to make it contains 0.16-0.24mg of astragaloside IV per 1ml.
[0160] Step 2, the preparation of the test solution, the method is as follows: take about 3.0 g of Yixin Fumai Granules, accurately weighed, put it into a 50ml Erlenmeyer flask, add 15ml of 4% ammonia water precisely, and ultrasonically treat it for 25 minutes to fully dissolve it. Centrifuge (3000 rpm, 10min), pipette 10ml of the supernatant precisely, and pass through the treated C18 solid phase extraction column (500mg, first eluted with 5ml of methanol, then eluted with 5ml of water) at a speed of 1ml / min , eluted with 5ml of water, discarded the eluent, then slowly eluted with 2ml of methanol into a 2ml volumetric flask, dilute...
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