Infrared Spectral Identification of Four Kinds of Licorice
1 Materials and methods
1.1 Instruments US Perkin-Elmer Model 783 infrared spectrophotometer, using a slit program of resolution 5.4 / cm, take 4 times average.
1.2 Samples.
1.3 Experimental method The medicinal material sample was pulverized, passed through a No. 3 sieve, and weighed lg, and extracted with diethyl ether to obtain an ether extract. The sample was sampled by KBr window coating method, and the infrared spectrum was scanned. After the data is processed by the spectrum, the computer is searched for the spectral library.
2 results
3 Discussion The experimental results show that the profile of the infrared spectrum of licorice in various situations (different habitats, different soils, wild and cultivated) is quite consistent and stable; the infrared spectra of the three authentic licorice are similar and different, from various The spectral difference between the same species of licorice caused by the situation is much smaller than the spectral difference between the three authentic licorice species. Therefore, according to the spectral difference characteristics between the three authentic licorices, the three licorices can be identified accurately; As the contour features of the infrared spectrum of other medicinal licorice licorice and the contour features of any kind of genuine licorice, the difference is easy to distinguish. There was no significant difference in the infrared spectrum of wild and cultivated licorice in the same producing area.
References, Institute of Materia Medica, Chinese Academy of Medical Sciences, etc. Chinese medicine. *book. Beijing: People's Health Publishing House. 1979: 359 ~ 362
Destoner has two types. Air Blowing type and Air Suction Type.
The Air Blowing Type Destoner has air blowers in bottom, with more quantity of air blowers, which can provide larger air volume for easy separation of stones and seed. The Blowing Type Destoner also has bigger size processing table, which can process the seed sufficiently .
Function of Destoner:
Destoner Machine is used to remove sand, stones, metals from good grain , seed, beans. It is also called Dry Stoner, Stone Removing Machine.
Its working principle is based on gravity weight, to remove heavier impurities from good materials.
Working Process of Destoner:
The working process is : when seed flow into vibration deck/sieve, with the combined work of vibration and air blowing, the heavier materials and lighter materials will separate in different layers and discharge from different outlet.
Application of Destoner:
Our Destoner Machine can be used for all kinds of seed, grain, beans, such as wheat, maize, rice, paddy, sesame, red beans, chickpea beans, soybeans, sunflower seed etc.
We also provide extra table or different sieves to process different materials.
Specification of Air Blowing type Destoner:
|
Model |
Capacity(t/h) |
Power(kw) |
Weight(kg) |
Dimension(mm) |
|
5XQS-3 |
3 |
5.5 |
600 |
1800X1300X1600 |
|
5XQS-5 |
5 |
7 |
700 |
2500X1560X1600 |
|
5XQS-10 |
10 |
9.7 |
800 |
2500X1680X1600 |
Air Blowing Type Destoner
Air Blowing Type Destoner,Grain Bean Destoner,Rice Stone Removing Machine,Rice Soybean Destoner Machine
SHIJIAZHUANG SYNMEC INTERNATIONAL TRADING LIMITED , https://www.seedgraincleaner.com