The electrophoresis instrument is an instrument for electrophoresis analysis, which refers to the movement of charged particles in an electric field. Different substances have different speeds of movement in the electric field due to the different charges and molecular weights. Substances are qualitatively or quantitatively analyzed, or a certain mixture is subjected to component analysis or single component extraction and preparation, which has extremely important significance in clinical inspection or experimental research. The electrophoresis instrument is designed and manufactured based on the above principles. Generally composed of power supply, electrophoresis tank, detection unit, etc. Electrophoresis is an indispensable and important analytical method for molecular biology research. Electrophoresis is generally divided into two categories: free interface electrophoresis and zone electrophoresis. Free interface electrophoresis does not require supports, such as isoelectric focusing electrophoresis, constant velocity electrophoresis, density gradient electrophoresis and microelectrophoresis. . For zone electrophoresis, various types of substances are used as supports. Commonly used supports include filter paper, cellulose acetate film, non-gel support, gel support, and silica gel-G thin layer. Molecular biology The most commonly used in the field is agarose gel electrophoresis. According to the voltage, it is divided into three types: high voltage 1500 ～ 5000V, medium voltage 500 ～ 1500V, and low voltage 500V; According to the current, it is divided into three types: high current 500mA ～ 2000mA, medium current 100 ～ 500mA, and small current 100mA; According to the power, it is divided into three types: high power 200 ～ 400W, medium power 60 ～ 200W, and low power 60W. From the voltage point of view, only a maximum voltage of 300V is required for nucleic acid (agarose) horizontal electrophoresis, PCR electrophoresis, DNA recovery, blot transfer, etc .; it is used for protein vertical electrophoresis, seed purity electrophoresis, cellulose acetate membrane electrophoresis, etc. Electrophoresis instrument with a maximum voltage of about 600V; for DNA sequencing (SSR molecular labeling), isopoint focusing electrophoresis, two-dimensional electrophoresis, etc., the highest voltage is 3000V; for DNA sequencing electrophoresis (AFLP molecular labeling), the highest voltage is 3800V. All the output parameters have a specific working range according to their models. If the actual need exceeds this range, you should choose another type of electrophoresis power supply that can meet the requirements. Because the internal structure characteristics of high and low voltage electrophoresis apparatus are different, because the high pressure electrophoresis apparatus is often attached with multiple functions, and the high pressure electrophoresis apparatus must not run without load (it is easy to cause damage to internal components of the personal injury), resulting in different degrees of difficulty in operation. Therefore, it is very important to choose an electrophoresis apparatus with appropriate specifications. If the user needs an electrophoresis instrument power supply with several electrophoresis tanks, first of all, make sure that the total current does not exceed the maximum range of the instrument. Secondly, the electrophoresis instruments are connected in parallel, so the voltage of each electrophoresis instrument is the same. The total current is the sum of the currents of the electrophoresis instruments. When using, be careful not to exceed the rated range of the power supply of the electrophoresis instrument. The above information is an introduction to the general information of the electrophoresis instrument, but it is not enough to affect how to choose the electrophoresis instrument. It is better to choose the electrophoresis instrument. According to the communication and feedback of customers in the past, a good electrophoresis instrument also needs the following related features: 1. Reasonable and concise design appearance A good electrophoresis apparatus should have an excellent design appearance, which not only solves the problem of aesthetic fatigue, but also shows the performance of a manufacturer. If it is a small factory, then his product will not invest so much money to solve the appearance problem. In other words, this is the simplest method of judgment. Compared with electrophoresis apparatus manufacturers on the market, JY200, JY200C, JY300, JY300C, JY600C and other electrophoresis apparatuses of Junyi East have excellent appearance of one-time molding, insulating material, beige plastic material. The tilted panel design makes the viewing angle of the LCD screen more reasonable, and the data can be clearly seen when standing in time; Insulation material and corrosion resistance make the operation life of electrophoresis instrument longer; The four grooves on the top design can be stacked with multiple electrophoresis devices of the same model without falling down, saving space. 2. Safe protective measures Experimental safety has always been the most concerned issue in the experimental process. A device should not only be easy to use, but also safe and reliable. At present, most manufacturers have related functions, but different manufacturers have different protection measures for leakage, power failure, short circuit and other situations. Some are when the above unsafe factors occur, the electrophoresis instrument sends out an alarm signal, and then cuts off the power through the software, and ends the alarm by pressing the "STOP" button. But the disadvantage of this method is that the program works normally under normal circumstances, but it must not be absolutely safe. Factors such as interference from external signals, dampness, etc. will cause errors in the program, and there is no way to guarantee the safety of the experimenters 100%. The electrophoresis instrument itself is a device that is higher than the mains voltage, so safe equipment is essential for the personal safety of laboratory personnel! Junyi Dongfang series electrophoresis instrument, also known as electrophoresis instrument power supply, has done enough work on safety. After the above alarm signal appears, all buttons are shielded. Will work. So what to do, there is no way in the world that is safer than physically cutting off the power! ! Therefore, the equipment requires the experimenter to manually cut off the main switch at this time, and the power supply is ended as soon as possible. At this time, it is the safest, and you can rest assured to check what the problem is, and continue to use it until the fault is eliminated. 3. It is not a good device to reset the parameters every time Junyi Dongfang series electrophoresis instrument can provide 10 storable file spaces for recording the setting parameters of 10 different operators parameter. 4. It is not a good device to lose parameters after power off In the course of the experiment, we will inevitably encounter some sudden power outages, so if there is such a device that can be remembered in the moment of setting the parameters, it should be so good. Such technology is reflected in Junyi's product range. The above is a summary of the editor, the characteristics that a good electrophoresis instrument should have (most of them come from customer feedback). Sports bag Mianyang Crossing Cross-Border E-Commerce Co., Ltd. , https://www.wycybag.com
The power supply of electrophoresis instrument on the market: