Method for controlling quality of Runzao Zhiyang tablet
A quality control method and moisturizing technology, which can be used in medical preparations containing active ingredients, measuring devices, pharmaceutical formulations, etc., and can solve the problems of large interference of mulberry leaf thin-layer chromatography, long inspection period, different preparation technology and auxiliary materials, etc. problem, to achieve the effect of good mulberry leaf thin-layer chromatography separation, shortened inspection period and good preparation quality
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experiment example 1
[0023] Experimental Example 1: The TLC feature identification of Sophora flavescens.
[0024] In the TLC identification of Sophora flavescens in the quality standard of capsules, the preparation time of the test sample is too long, which is not conducive to the progress of the experiment. In addition, the reagent used in the development system - benzene is highly toxic and not conducive to environmental protection. However, the extraction method contained in the invention is simple and feasible, and the expansion system is replaced by toluene with less toxicity, which can also separate the spots well.
[0025] The following extraction methods were tested: take 4 tablets of this product, remove the film coat, grind finely, add 25ml of dichloromethane, 0.5ml of concentrated ammonia test solution, ultrasonically treat for 30 minutes, filter, evaporate the filtrate to dryness, add anhydrous Dissolve in 2ml of ethanol as the test solution. Results The spots in the chromatogram of ...
experiment example 2
[0027] Experimental example 2: It is the identification of TLC characteristics of mulberry leaves.
[0028] The TLC identification method of mulberry leaves in the capsule quality standard is greatly disturbed by impurities and difficult to observe, but the TLC separation effect of the storage method of the present invention is good, the spots are round and round, the reproducibility and specificity are good, and the negative control has no interference .
[0029] The following extraction and purification methods were compared and tested: ①Take 4 tablets of this product, remove the film coat, grind finely, add 20ml of ethanol, ultrasonically treat for 1 hour, filter, evaporate the filtrate to dryness, add 2ml of absolute ethanol to dissolve the residue, and use it as The test solution. ②Take 4 tablets of this product, remove the film coating, grind finely, add 20ml of ethanol, heat and reflux for 1 hour, let cool, filter, evaporate the filtrate to dryness, add 20ml of water t...
experiment example 3
[0031] Experimental Example 3: Determination of Matrine Content
[0032] Because the content of emodin in the preparation is low, less than 1 / 10,000, and the quality controllability is insufficient, the present invention newly establishes a method for determining the content of matrine in the preparation. The test results show that the separation effect is good under the selected conditions, and the methodological investigations such as linearity, stability, repeatability, and recovery rate all meet the requirements of content determination, and can be used as indicators for controlling the quality of this preparation. The test results are as follows:
[0033] 1. Solution Preparation
[0034] Preparation of reference substance solution: Accurately weigh 10.22 mg of matrine reference substance, put it in a 10ml measuring bottle, add methanol to dissolve and dilute to the mark, shake up, accurately measure 0.5ml and put it in a 10ml measuring bottle, add acetonitrile-methanol (...
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