Search
Key: test item, instrument name, total nonvolatile migration, gravimeter, moisture permeameter
Chinese herbal medicine extract
Release time:
2021-08-05
Chinese medicine is the quintessence of our country, and Chinese medicinal materials are the basis of Chinese medicine, and it is also the key to the clinical efficacy of Chinese medicine. As the country pays more and more attention to the development of Chinese medicine, Chinese medicinal materials have also formulated detailed and clear quality standards. However, for some medicinal materials, the active ingredients or index components are unclear or the content is very low or there is no precise quantitative method. At this time, it is necessary to determine the content of "extracts".
There are two test methods for extract content specified in the Pharmacopoeia: cold soaking method and hot soaking method. Different Chinese medicinal materials choose appropriate methods according to their own properties. After soaking the Chinese medicinal materials, take 20 or 25ml of soaking liquid, put it in a constant weight evaporating dish, and evaporate it in a water bath, then dry it at 105°C for 3 hours, then cool it in a desiccator for 30 minutes, and quickly and accurately weigh it. Unless otherwise specified, the content (%) of the water-soluble extract in the test product is calculated based on the dry product.
This experimental process is similar to the detection of non-volatile matter in the extract of pharmaceutical packaging materials, and constant weight is included in the experimental requirements, namely: the test solution must be evaporated in a water bath, dried and cooled, and then weighed; after another drying process Weighing, the difference in weighing mass is less than 0.3mg. When the experimenter manually operates it, it is extremely susceptible to the influence of environmental humidity, and it is difficult to achieve the constant weight requirement. Not only is it a serious waste of human resources, but it is also difficult to control the accuracy of the experiment; in addition, the medicine is three-point poison, and the experimenter's long-term exposure to the steam of the traditional Chinese medicine soaking liquid will inevitably affect the body.
The constant weight instrument developed and designed by Xitang Technology specifically to meet the requirements of constant weight, integrates the functions of water bath evaporation, heating and drying, drying and cooling, and constant temperature weighing. Instead of traditional water bath, oven, drying oven and balance, 2 weighing processes can achieve constant weight weighing. It not only perfectly meets the requirements of the standard 100%, but also greatly improves the efficiency of constant weight and the accuracy of the experiment.
Moreover, the optional tail gas recovery device can efficiently recover toxic steam. The experimenter only needs to load samples and come back regularly to get the test report. At present, more than ten listed pharmaceutical companies have applied the constant weight instrument for quality inspection.
In addition, the constant weight meter can also be used for: non-volatile matter in purified water, non-volatile matter in extracts of pharmaceutical packaging materials, loss on drying of raw materials, and other experiments that require constant weight.
Extract Constant Weight——Relative Products:
|
|
|
|
Previous
Next
上一页
下一页
Related Applications
Evaporating Residue, Non-volatile Residue
2021-09-01
Pharmacy is a very rigorous process, and the quality of water has a major impact on the quality of pharmaceuticals. Ordinary water contains many trace elements and other substances, which cannot meet the needs of pharmaceutical production. Only purified water that meets the requirements can be used in pharmaceutical production. In this regard, the state has formulated a number of testing items to monitor the quality of purified water, and "non-volatile matter" is the most "torturing" item. The "most tortured" person in non-volatile matter testing? According to the Pharmacopoeia, 100ml of purified water is placed in an evaporating dish with constant weight to evaporate to dryness, and after drying to constant weight, the remaining residue shall not exceed 1mg; in addition, according to the general requirements of the Pharmacopoeia, the constant weight needs to be dried twice and weighed. The difference is less than 0.3mg. The 0.3mg constant weight requirement is very difficult for manual operation, so too many experimenters always struggle with this, and they think that the non-volatile item is too torturous. How to solve this "torture" problem? In today's increasingly high degree of automation, Xitang Technology has given the answer-a non-volatile constant weight meter. The constant weight instrument developed and designed by Xitang specifically to meet the requirements of constant weight, integrates the functions of water bath evaporation, heating and drying, drying and cooling, and constant temperature weighing. Instead of traditional water bath, oven, drying oven and balance, 2 weighing processes can achieve constant weight weighing. It not only perfectly meets the requirements of the standard 100%, but also greatly improves the efficiency of constant weight and the accuracy of the experiment. At this point, the "torturing" experiment is no longer tortured, the experimenter only needs to install the sample, and the rest is handed over to the automation. At present, more than ten listed pharmaceutical companies have applied the constant weight instrument for quality inspection. The constant weight instrument in the pharmaceutical industry can also be applied to: non-volatile matter in extracts of pharmaceutical packaging materials, loss on drying of raw materials, extracts of traditional Chinese medicines, and other constant weight requirements experiments. Purified Water Non-volatile Residue Constant Weight Tester——Relative Products： Constant Weight Tester 12 specimens, integrated the functions of evaporating, heating, drying, constant temperature weighing. Constant Weight Tester 23 specimens, integrated the functions of evaporating, heating, drying, constant temperature weighing. Constant Weight Tester 48 specimens, integrated the functions of evaporating, heating, drying, constant temperature weighing. Constant Weight Tester 12 specimens, integrated the functions of heating, drying, constant temperature weighing.
Contact Us
Guangzhou Labstone Technology Co., Ltd
Add: 6 / F, building A1, No. 2-6, Jinbao Road, Baiyun Hubao street, Baiyun District, Guangzhou, Guangdong
Technical：020-86406337
Switchboard：020-86406230
Email：LabStone@vip.163.com
Message
fOLLOW
