Content detection method of antiasthmatic tablets
A detection method, the technology of Anchuan tablet, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of simple detection method and inability to control product quality well, and achieve the effect of quality assurance
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experiment example 1
[0026] Experimental Example 1 Study on the Methodology of Hyperin Content Determination
[0027] The content detection method of the present invention is obtained by screening, and the screening process is as follows:
[0028] 1. Selection of chromatographic conditions
[0029] The chromatographic column uses octadecylsilane bonded silica gel as filler, the mobile phase is acetonitrile-0.1% acetic acid solution with a volume ratio of 10:90, and the detection wavelength is 360nm. Under this chromatographic condition, hyperin is well separated from other components in the sample, and the number of theoretical plates should not be less than 5000 based on the peak of the hyperin reference product.
[0030] 2. Preparation of the test solution
[0031] Take 10 tablets of this product, grind them finely, accurately add 50mL of methanol with a volume fraction of 80%, weigh the weight, heat to reflux for 1 hour, let cool, weigh again, and make up the lost weight with methanol with a ...
Embodiment 2
[0059] The content detection method of Anchuan Tablets:
[0060] Choice of detection wavelength:
[0061] The hyperin reference substance solution used in the experiment was used for spectral scanning. The experiment showed that the reference substance solution had maximum absorption at a wavelength of 360nm, and the separation effect was good with less interference. Therefore, the detection wavelength was selected to be 360nm.
[0062] figure 1 It is the ultraviolet absorption spectrum of hyperoside, and the absorbance of hyperoside is the largest at the ultraviolet wavelength of 360nm, so the detection wavelength is 360nm;
[0063] Chromatographic conditions and system suitability test: Octadecylsilane bonded silica gel is used as filler, acetonitrile-0.1% acetic acid solution (10:90) is used as mobile phase; detection wavelength is 360nm; theoretical plate number is based on hyperin Peak calculation should not be less than 5000;
[0064] Preparation of the reference subs...
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