The quality control requirements of Chinese medicinal materials are more and more strict, the range of Chinese medicinal materials is wide, the raw materials of plants, animals and minerals are many, and the nature is complex. In pesticide residues, heavy metal pollution, mycotoxins and other aspects of the new detection methods and limit standards, pharmaceutical companies need to invest more manpower and material resources to achieve, and in the effectiveness of Chinese medicinal materials, pharmaceutical companies and testing units need to strengthen the content determination and characteristic map research, effectively provide a strong guarantee for safe and efficient drug use.
The diversity of raw materials of Chinese medicinal materials has brought no small difficulty to the testing work, thousands of medicinal materials need to be tested, and so many samples need to be processed according to the grinding and crushing requirements of the new edition of pharmacopoeia 2020. How to ensure the accuracy and repeatability of the test results, how to grind and crush Chinese medicinal materials with different properties, and how to achieve the desired fineness requirements of the grinding effect? These need a professional laboratory Chinese medicine crusher to complete, today we take the Chinese herbal medicine common hard and brittle herbs - 37 as an example, for you to explain the use of the crusher.
Sample: Panax Notoginseng (hard bulk medicine,40 heads)
Crushing time: 2 minutes
Crushing times: 2 times
Conclusion: The fineness of Panax Notoginseng is 80 mesh after grinding
Experimental process:
No need to break, the whole into the crusher, it should be noted that when the machine is started, there may be a card knife situation, in order to avoid or reduce the occurrence of this situation, we use the tilt machine start way, the machine after the start of the left and right swing machine has achieved a better crushing effect, the first crushing time is 1 minute, After grinding stops, open the lid and stir the crushed raw materials with a random brush, and clean the lid and the fine powder around the grinding chamber again into the crushing chamber. Start the machine again and run for 1 minute to complete the crusher.
Note:
1. The properties of Chinese medicinal materials, sample size, processing time, crushing times, instrument model, rotational speed and other factors will have an impact on the grinding and crushing effect.
2. The moisture content of Chinese medicinal materials will also affect the crushing effect, because this series of sample crusher uses high-speed motor, heat production is more obvious, can be intermittent grinding, multiple short time grinding to slow down the speed of temperature rise.
3. Some models with adjustable speed can be started at a low speed to reduce the resistance at the start time and reduce the appearance of the clamping tool.
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