The extractor extracts and purifies the compound by extracting the desired compound from the solid or liquid mixture by extraction. At present, there are many kinds of extraction instruments on the market, such as automatic solid phase extractor, supercritical extractor, microwave digestion extractor, ultrasonic extractor, perforation extractor and flux extractor.
Automatic extractor
The instrument uses the principle of aerodynamics to complete the method of extracting substances by hand, and can accurately time to the second, and the effect is good, and it also saves time, and can also discharge harmful gases through the catheter to the outside, completely putting people out of trouble. Freed up in the shake.
The automatic extractor is a fully automatic working mode, which can completely replace the manual shaking, and does not need to artificially "deflate" due to the evaporation and expansion of the organic solvent during the shaking process. It reduces the labor intensity of the experimenter, avoids direct contact between humans and toxic reagents, and protects the health of the operator. It is an indispensable common extraction instrument in the laboratory.
The automatic extractor is a "liquid-liquid" extraction device mainly used in chemical laboratories.
At present, in the general laboratory, the "liquid-liquid" chemical extraction is generally carried out by hand-flowing with a separating funnel. This method is not only cumbersome and has low extraction efficiency, but also has high labor intensity, and the organic solvent used in the extraction is also given. The experimenter brought physical poisoning.
Instrument upgrade features
Automation: A complete automated solid phase extraction system can be used to perform solid phase extraction methods unattended. Some solid phase extractors can only perform partial solid phase extraction steps and cannot be automated liquid phase extractors.
â— Modularization: It is possible to switch unused modules according to different user applications and complete the application of different solid phase extraction methods, such as double column stacking. Typical GX-27X automated solid phase extractor series developed by Gilson Corporation of the United States. The application of various solid phase extraction methods can be accomplished through the switching of different functional modules, which is the mainstream choice for the world's pre-processing laboratories.
â— Economical: A mature automatic solid phase extraction instrument should provide customers with an economical post-use experience. Includes reagents, consumables such as SPE cartridges. It should be compatible with the products of the popular mainstream SPE cartridge suppliers. Some automated solid phase extraction devices, such as Gilson.inc, Caliper, can meet this requirement.
Parallelization: Customers using automated solid phase extraction systems often want to be able to process multiple samples in parallel. This parallelization requirement is reflected in every step of solid phase extraction, including cartridge activation, loading, washing, and elution. . The so-called parallel processing is also simultaneous processing. Some instruments such as Dionex's Autotrace model do not really achieve parallel processing during the loading step.
â— Functionalization: More and more laboratories will pre-process various types of samples, including food, pharmaceutical, agricultural, environmental and other related fields. Customers want to be able to process both regular and large samples on the same platform. In this respect, Gerson's GX-27X series products are better, and it is the only automated solid phase extractor that can complete two types of samples on one platform. Some manufacturers, such as J2 scientific, provide integrated applications for extraction and concentration.
â— Expanding: Scalability is from software and hardware. From the software, having a relatively open and free control software can provide more possibilities for the customer's application. From the hardware, the laboratory has a variety of experimental test tubes and containers, a set of mature automatic solid phase extraction equipment should be able to automatically customize the function of the tube rack. For now, only a few manufacturers can support this application in software and hardware, such as Gilson Corporation of the United States.
â— Reliable: The most important characteristic of an automated instrument is stability and reliability. In this way, the advantages of automation can be exploited to minimize human error in the experiment. Software is an important part of it. Mainstream manufacturers such as Gilson of the United States use the software of the database core architecture to control the operation of the instrument, which not only makes the software more stable, but also allows customers to access the data records of previous experiments at any time. Some manufacturers often combine various functions together. In this way, due to the excessive number of functional modules, the failure rate is high. Often, a module such as concentration causes the entire system to be paralyzed, which greatly affects the normal application of the customer.
1. Good reproducibility and extraction efficiency ≧98%;
2, the extraction speed is fast, 4-6 samples can be extracted in two minutes.
3, the degree of automation of extraction is high, ready to use, improve the efficiency of the experimental staff.
4. Avoid direct contact between the experimenter and the toxic extractant.
5, suitable for all "liquid-liquid" extraction work, such as volatile phenols in water samples, anionic synthetic detergents, BHC, DDT, oil in water, etc.
Instrument installation and use
1. Fix the bracket, top plate and bottom plate to the base according to their actual positions, and see if it is square. If the screw holes are not facing each other, you can exchange the screws and fix them with screws.
2. Cut the air guiding tube into the required length, connect it to the corresponding air outlet on the base, and connect the other end of the air guiding tube to the air inlet of the extraction bottle. The air outlet on the air outlet leads to the outside, if it is in the ventilation kitchen. In the experiment, the outlet duct can be installed at the outlet of the extraction bottle.
3. Time setting: The time is set to 2-3 minutes. When the time is up, the instrument will automatically stop working.
Time adjustment: Use a sharp object to move at the panel groove of the timing meter to change the setting of hour, minute and second.
The meaning of the time number:
1 When the middle of the digital device is set to (h) for hour, the timing range is 1 minute - 99 hours and 99 minutes (the front digital represents the hour, the back digital represents the minute).
2 When the middle of the digital device is set to (m), the timing range is 1 second - 99 minutes and 99 seconds (the front digital representative points, the latter digital represents the second).
3 When the middle of the digital device is set to (s), it represents seconds, and the timing range is 0.01 seconds to 99.99 seconds (the front digital represents seconds, and the rear digital represents 0.01 seconds).
For your safety, please ground the ground well.
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