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Automatic liquid dispensing instrument

The automatic liquid dispensing instrument is an efficient liquid processing equipment that integrates automation technology, computer technology and liquid transportation technology. It is widely used in scientific research, medicine, food testing, environmental monitoring and other fields. It can automatically complete precise liquid distribution, mixing, dilution and other operations, significantly improving the accuracy and efficiency of experiments while reducing the workload of experimental personnel.

自動分液儀器

1. Working principle of automatic liquid dispensing instrument The working principle of automatic liquid dispensing instrument is mainly based on the principle of liquid separation and transmission, using pressure difference and precise design to achieve precise separation and transmission of liquid. Specifically, it can work in the following ways: 1. Pressure difference drive: using positive or negative pressure to drive the flow of liquid. In positive pressure mode, pressure is provided through a syringe pump or compressed gas; in negative pressure mode, negative pressure is generated through the device's own structure or a vacuum pump to suck liquid into the pipeline. 2. Precision control: Equipped with a precise flow rate control system, precise control of liquid separation and transmission can be achieved by adjusting pressure valves, valves, pumps and other devices. 3. Liquid separation principle: Use different liquid separation principles such as centrifugation, filtration, extraction, etc. to achieve liquid separation. Among them, centrifugal separation is the most common method, which uses centrifugal force to separate solid particles or precipitates from the liquid, and then transfers the supernatant liquid to the receiving container through pressure difference.

2. The main functions of the automatic liquid dispensing instrument 1. Automatic sampling: It can automatically load the tip, absorb the liquid and transfer it to the designated container according to the preset program. 2. Precise liquid dispensing: By accurately controlling pressure and flow rate, precise liquid distribution is achieved to ensure that the amount of liquid in each receiving container is accurate. 3. Multi-function operation: In addition to basic liquid separation functions, some automatic liquid separation instruments also have multiple functions such as mixing, dilution, and extraction, which can meet complex experimental needs. 4. Real-time monitoring: Equipped with high-precision weighing sensors and pressure sensors to monitor weight and pressure changes in real-time during the injection and liquid separation processes to ensure the accuracy and stability of the results.

3. Product introduction of automatic liquid dispensing instruments. For example, Opentrons OT-2 is an automated pipetting robot with high precision, high flexibility and high compatibility. It can complete precise pipetting ranging from 1μL to 1000μL, and is suitable for various biochemical research experiments. OT-2 has an exquisite design and compact structure, making it suitable for use on a laboratory desktop, greatly saving laboratory space. The following is the detailed data introduction of the OT-2 instrument: Pipetting accuracy: ±5% at 1 μL, pipetting range 1-1000 μL. Sample throughput: 96 samples. Instrument dimensions: 63cm x 57cm x 66cm. Machine weight: 48KG. Connectivity: Supports WiFi 2.4 GHz IEEE 802.11b/g/n and USB 2.0 connections.

As one of the important tools in modern scientific research and industrial production, automatic liquid dispensing instruments play an important role in improving work efficiency, ensuring experimental accuracy, and reducing work burden. With the continuous advancement of technology and the continuous development and growth of the market, automatic liquid dispensing instruments will surely usher in broader application prospects and development space.

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