Method for evaluating quality of Ampelopsis japonic(Thunb.)Makino through quantitative analysis of multicomponents by single marker
A technology of whiteness and quality, which is applied in the field of drug quality control, can solve the problems of complex content determination methods, high economic cost of detection, and many varieties of standard products, and achieve the effects of easy promotion, simplified quantitative detection methods, and reduced detection time
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Embodiment 1
[0056] The method of evaluating the quality of Baishui with one test and multiple evaluations adopts the method of one test and multiple evaluations, and uses resveratrol as an internal reference to establish relative correction factors for gallic acid and protocatechuic acid, and use the correction factors to calculate gallic acid, The content of protocatechuic acid, realizes the quality control of Radix Sinensis, specifically comprises the following steps:
[0057] Step 1, preparation of reference substance standard solution
[0058] Step 1.1. Accurately weigh 0.0025g of gallic acid standard substance, 0.0104g of resveratrol standard substance, and 0.0103g of protocatechuic acid standard substance into 25ml volumetric flasks, and dilute with methanol to prepare a concentration of 0.100mg The gallic acid standard solution per ml, the resveratrol standard solution with a concentration of 0.416mg / ml and the protocatechuic acid standard solution with a solubility of 0.412mg / ml a...
Embodiment 2
[0098] The method of evaluating the quality of Baishui with one test and multiple evaluations adopts the method of one test and multiple evaluations, and uses resveratrol as an internal reference to establish relative correction factors for gallic acid and protocatechuic acid, and use the correction factors to calculate gallic acid, The content of protocatechuic acid, realizes the quality control of Radix Sinensis, specifically comprises the following steps:
[0099] Step 1, preparation of reference substance solution
[0100] Step 1.1. Accurately weigh 0.0025g of gallic acid standard substance, 0.0104g of resveratrol standard substance, and 0.0103g of protocatechuic acid standard substance into 25ml volumetric flasks, and dilute with methanol to prepare a concentration of 0.100mg The gallic acid standard solution per ml, the resveratrol standard solution with a concentration of 0.416mg / ml and the protocatechuic acid standard solution with a solubility of 0.412mg / ml are for su...
Embodiment 3
[0129] Using the method of one test and multiple evaluations, using resveratrol as an internal reference, the relative correction factors of gallic acid and protocatechuic acid were respectively established, and the contents of gallic acid and protocatechuic acid were calculated using the correction factors, so as to realize the quality control, including the following steps:
[0130] Step 1, preparation of reference substance solution
[0131] Step 1.1. Accurately weigh 0.0025g of gallic acid standard substance, 0.0104g of resveratrol standard substance, and 0.0103g of protocatechuic acid standard substance into 25ml volumetric flasks, and dilute with methanol to prepare a concentration of 0.100mg The gallic acid standard solution per ml, the resveratrol standard solution with a concentration of 0.416mg / ml and the protocatechuic acid standard solution with a solubility of 0.412mg / ml are for subsequent use;
[0132] Step 1.2, accurately measure 4ml of the above-mentioned gall...
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