01. What is the operating frequency of the ultrasonic cell pulverizer?
Standard ultrasonic cell pulverizer products are rated for operation at 20 kHz. In order to achieve zuijia performance, the unique auto-tuning function of the five-party ultrasonic cell pulverizer can change the frequency within a small range.
02. When does the ultrasonic cell pulverizer change the "tip" head?
Ultrasonic cell shredder replaceable "tip" heads are often used in high energy applications where wear can occur. When energy is transferred through the "tip" head, corrosion can occur where the metal surface leaves a mark. Over time, a slight erosion spot will occur where corrosion occurs. The “tip†head can be sanded with gauze or gauze unless it is damaged to a certain extent; when this happens, the “tip†head will be difficult to tune the frequency, instead it may be a long, sharp noise, Zui Cracks eventually form. Since the price of the "tip" head is relatively cheap, we recommend that if there is a problem after the second polishing, it will be replaced.
04, cosmetic dispersion
Cosmetics want to penetrate deeper into the skin layer, allowing the skin to absorb better and exert its effects and effects. The extraction of the essence is very important. In order to better extract the essence of the drug and the micro-fine particles, save the production cost, and achieve the dispersion and emulsification effect, the ultrasonic cell pulverizer is the ideal way. By ultrasonic dispersion, fine particles of oil such as wax and paraffin emulsified or lotion can be dispersed without using an emulsifier. Paraffin particles dispersed in water can be up to 1um in diameter.
05. Working time Ultrasonic continuous working time should not exceed 5 seconds each time, and the working gap time should be greater than or equal to the ultrasonic time to facilitate heat dissipation. The time setting should be based on the principle that the ultrasonic time is short and the number of ultrasound times is large, which can prolong the life of the ultrasonic cell disruptor and the ultrasonic probe.
06, ultrasonic power should not be too large, so as to avoid sample splash or foaming, such as less than 10ml sample capacity, power should be within 200w, select 2mm ultrasonic probe, and the horn selector switch behind the panel to the corresponding block; 10-200ml The power of the sample capacity is 200-400w, the 6mm ultrasonic probe is used, and the horn behind the panel is driven to the corresponding gear; the capacity of the sample above 200ml is between 300-600w, the 10mm ultrasonic probe is used, and the rear of the panel is used. The horn is hit to the corresponding gear; (the small probe power of 2MM is strictly prohibited to exceed 350W). The alkaloids are extracted by ultrasonic cell pulverizer for total alkaloids in sand oysters. The extraction rate is over 85% at room temperature, and the extraction rate is more than 85%. 4--6 hours/time, extracting three times is better.
07, extraction of biological nanometer (chemical synthesis method)
In the ultrasonic chemical reaction, the key role is the cavitation effect of sound waves. During the irradiation of the ultrasonic waves, the formation of cavitation bubbles, growth and collapse will occur in the liquid. When the cavitation bubble collapses, a strong pressure pulse is created that produces many unique properties, such as producing high temperatures of up to 5000K and pressures of greater than 200 MPa. This is similar to the principle of ultrasonic cleaning. This is also the source of energy for ultrasonic chemical synthesis, which can be used to synthesize nanoparticles on the surface of some special powders.
08. The solvent is extracted and extracted by slurry extraction. Ultrasonic extraction of lipopolysaccharide is carried out. At room temperature, the ultrasonic treatment time is 30 minutes, the polysaccharide extraction rate is over 92%, and the fucose content in the polysaccharide is 35%. The cost is only about 1/4 of the conventional extraction.
09. The other peppers were boiled with 75% ethanol for 8 hours and the absorbance was 2.274; the extraction was carried out for 30 minutes at room temperature with an ultrasonic cycle extractor, the absorbance was 1.993, the extraction was carried out for 40 minutes, and the absorbance was 2.053.
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