Method for liquid chromatography-mass spectrometry tandem detection of content of stachydrine hydrochloride in Fukangning tablets
A technology of stachydine hydrochloride and Fukangning tablets is applied in the field of chemical detection to achieve the effect of rapid detection and perfect quality standards
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[0017] 1) Take 10 tablets of this product, remove the coating, accurately weigh, grind finely, take about 2g, accurately weigh, put it in a conical flask, accurately add 20ml of 80% ethanol, seal it tightly, weigh it, and extract it by ultrasonic for 30min , let it cool, weighed again, supplemented the lost weight with 80% ethanol, shook well, passed through the C18 solid-phase extraction column activated with 3ml ethanol and 3ml water respectively at a flow rate of 1ml / min, rinsed with 5ml water, Discard, then elute with 5ml of ethanol to collect the eluate, blow the eluate to nearly dry under nitrogen at 40°C, add 1ml of ethanol to dissolve it, filter it with a 0.22μm organic filter membrane, and take the filtrate to obtain the test solution ;
[0018] 2) Get the motherwort negative sample prepared according to the prescription ratio and process, and prepare a negative control solution according to the preparation method of the test solution;
[0019] 3) Accurately weigh 17...
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