Method for synchronously detecting various coloring agents in traditional Chinese medicine preparations
A technology for simultaneous detection of traditional Chinese medicine preparations, applied in measuring devices, instruments, scientific instruments, etc., can solve the problem of no detection method, and achieve the effect of reducing detection cost, high accuracy and good stability
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Embodiment 1
[0030] A method for simultaneous detection of multiple colorants in traditional Chinese medicine preparations, the detection method comprising the following steps:
[0031] (1) Preparation of mixed reference substance solution: Accurately weigh the appropriate amount of sunset yellow, acid red, methyl orange, golden orange II, auramine O, erythrosine and basic orange reference substances, and add methanol to prepare the mass of each component. The mixed reference solution whose fractions are all 0.1 μg / ml shall be stored in the dark at 4-6°C;
[0032] (2) Preparation of sample solution: take 0.5 g of Pueraria baicalensis slices, grind it, accurately weigh it, add 50 ml of methanol, ultrasonicate it for 40 minutes, weigh it, make up for the lost weight with methanol, and filter it; Put 1ml of the filtrate into a 10ml measuring bottle, add methanol to dilute to the mark, pass through a 0.2μm filter membrane to obtain the sample solution to be tested, and store it in the dark at ...
Embodiment 2
[0040] A method for simultaneous detection of multiple colorants in traditional Chinese medicine preparations, the detection method comprising the following steps:
[0041] (1) Preparation of mixed reference substance solution: Accurately weigh the appropriate amount of sunset yellow, acid red, methyl orange, golden orange II, auramine O, erythrosine and basic orange reference substances, and add methanol to prepare the mass of each component. The mixed reference solution whose fractions are all 0.1 μg / ml shall be stored in the dark at 4-6°C;
[0042] (2) Preparation of sample solution: take 0.5 g of Pueraria baicalensis slices, grind it, accurately weigh it, add 60 ml of methanol, ultrasonicate it for 40 minutes, weigh it, make up for the lost weight with methanol, and filter it; Put 1ml of the filtrate in a 10ml measuring bottle, add methanol to dilute to the mark, pass through a 0.2μm filter membrane to obtain the sample solution to be tested, and store it in the dark at 4-...
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