Introduction: The ultrasonic extraction instrument widely used in the laboratory currently transmits the ultrasonic wave generated by the ultrasonic transducer through the medium (usually water) and acts on the sample. This is an indirect mode of action. The level of extraction efficiency depends on the intensity of the sound intensity. In order to solve the problem of low extraction efficiency, people often increase the extraction efficiency by increasing the ultrasonic generator power (≥300W). However, with higher ultrasonic power, unpleasant noise may be emitted. Microwave-assisted extraction technology uses the target molecules in the sample under the action of microwave electromagnetic field, from the original thermal state of motion to follow the microwave alternating electromagnetic field and rapid alignment orientation, the microwave energy is converted into energy in the sample, thereby accelerating the target The process of entering the solvent phase from the solid phase. The existing microwave-assisted extraction apparatus includes high-pressure closed type and open-type atmospheric pressure. Although each has its own advantages, there are also some deficiencies. For example, the high-pressure microwave-assisted extraction apparatus requires high strength and tightness of the extraction tank material, and the sample processing volume is small (about 0.5-5g), requiring a long cooling time. Atmospheric pressure open microwave-assisted extraction instrument overcomes the shortage of high-pressure closed type to a certain extent, and the sample processing capacity also greatly increases, but the sample processing time is longer and the work efficiency is decreased. To overcome the deficiencies of the above-mentioned various ultrasonic or microwave assisted technology methods and the charring phenomenon caused by the long-term reaction of organic chemicals involved in the reaction, we tried to organically combine ultrasonic waves and light waves (microwaves) to make full use of ultrasonic waves. The cavitation of vibration and the high-energy effect of light waves (microwaves) have taken the lead in proposing a new idea of light wave (microwave)-ultrasound synergism for sample preparation under low temperature and pressure conditions, and successfully developed Scientz-IIDM light waves/ Microwave/ultrasonic combination extraction system. Technical Parameters: Function combination: can choose any combination of microwave, ultrasonic, light wave, ultraviolet, magnetic stirring Microwave power: 1000W (1%-100%); Microwave frequency: 2450 MHz; Working hours: 0-999S Microwave mode of action: pulsed continuous heating; Wave power/wavelength: 0-800W/infrared section; working time: 0-999S UV power/wavelength: 50W/365nm; Ultrasonic variable pole diameter: Φ6mm; Ultrasonic power/frequency: 10-1000W/20-25 KHz; Ultrasonic action method: The immersed ultrasonic transducer is in direct contact with the material in the container, and the acoustic vibration (energy) efficiency is close to 100%; Magnetic stirring: 50-300 rpm Program control: 200 sets of programs can be preset, each program can be preset time (0-999S), microwave, light wave, ultrasonic power, ultraviolet (on / off), stirring and other control operating parameters, computer storage, can be set directly, modify And call; Temperature control: Non-contact infrared temperature measurement. Temperature and temperature control range, room temperature ~ 300 °C (± 1 °C); Machine control: full Chinese color touch screen man-machine interface, industrial-grade microcomputer PLC programmable controller; Password: user, administrator secondary password; Reactor monitoring: One screen with real-time video window to monitor sample reaction status; LED lighting power/color temperature: 24W/6200K; Network Interface: RJ45 Sample volume: standard 500ml, optional 250ml, 1000ml (special specifications can be customized according to user requirements); Protection: It has multiple safety interlocking protection devices such as magnetron temperature protection, door switch protection, etc. It has high reliability and safety. Material: stainless steel inner shell, durable Furnace volume: 25 L; Power supply: 220 V±10% AC, 50 Hz; Power: 3000W; Microwave leakage meets national standards
Introduction: The ultrasonic extraction instrument widely used in the laboratory currently transmits the ultrasonic wave generated by the ultrasonic transducer through the medium (usually water) and acts on the sample. This is an indirect mode of action. The level of extraction efficiency depends on the intensity of the sound intensity. In order to solve the problem of low extraction efficiency, people often increase the extraction efficiency by increasing the ultrasonic generator power (≥300W). However, with higher ultrasonic power, unpleasant noise may be emitted. Microwave-assisted extraction technology uses the target molecules in the sample under the action of microwave electromagnetic field, from the original thermal state of motion to follow the microwave alternating electromagnetic field and rapid alignment orientation, the microwave energy is converted into energy in the sample, thereby accelerating the target The process of entering the solvent phase from the solid phase. The existing microwave-assisted extraction apparatus includes high-pressure closed type and open-type atmospheric pressure. Although each has its own advantages, there are also some deficiencies. For example, the high-pressure microwave-assisted extraction apparatus requires high strength and tightness of the extraction tank material, and the sample processing volume is small (about 0.5-5g), requiring a long cooling time. Atmospheric pressure open microwave-assisted extraction instrument overcomes the shortage of high-pressure closed type to a certain extent, and the sample processing capacity also greatly increases, but the sample processing time is longer and the work efficiency is decreased. To overcome the deficiencies of the above-mentioned various ultrasonic or microwave assisted technology methods and the charring phenomenon caused by the long-term reaction of organic chemicals involved in the reaction, we tried to organically combine ultrasonic waves and light waves (microwaves) to make full use of ultrasonic waves. The cavitation of vibration and the high-energy effect of light waves (microwaves) have taken the lead in proposing a new idea of light wave (microwave)-ultrasound synergism for sample preparation under low temperature and pressure conditions, and successfully developed Scientz-IIDM light waves/ Microwave/ultrasonic combination extraction system.
