JN01A thick slurry electrophoresis instrument

Introduction to JN01A thick slurry electrophoresis instrument
Measuring the Zeta potential of particles to determine their isoelectric point is an important method for understanding the surface electrical properties of particles, and it is also an important means in particle surface treatment. The JS94 series microelectrophoresis (zeta potential meter) produced by Shanghai Zhongchen Digital Technology Equipment Co., Ltd. is an instrument for measuring particle electrical properties. As the JS94 series microelectrophoresis (zeta potential meter) is suitable for dilute dispersion systems, it needs to be diluted before measurement for concentrated dispersion systems. If you wish to measure the original state of the concentrated dispersion system, the JN01A concentrated slurry electrophoresis instrument may be more suitable.
Measure Zeta potential using mass exchange method. The so-called mass exchange Zeta potential analyzer actually measures Zeta potential based on electrophoresis speed, but it does not observe the movement speed of particles one by one. Instead, it converts speed into mass, collects directionally moving particles on the electrode, and calculates Zeta potential based on the weight gain of the electrode. The electrode for collecting particles is the bottom of the sample cell that can be freely loaded and unloaded, and its weight gain is determined by weighing the sample cell before and after the experiment. Due to the fact that the electrode not only collects particles with opposite charges, but also discharges the same volume of liquid medium, the weight gain obtained is actually the weight of the particles deposited on the electrode minus the weight of the same volume of liquid.
Similar instruments in the United States use the weighing method, but it is difficult to accurately weigh. The acquisition of weight gain is based on the different light transmittance of liquids of different concentrations. The light transmittance is obtained first, and then the corresponding liquid concentration is obtained. The weight gain is calculated based on the change in concentration. Therefore, compared with other similar instruments at home and abroad, it has significant *.
Of course, measuring the zeta potential of charged particles in a dispersed system using the JS94 series microelectrophoresis (zeta potential analyzer) is more convenient and consumes very little sample. When using, users need to bring their own conductivity meter, specific gravity meter/bottle, and viscosity meter to measure relevant data, and input them in the experimental operation software interface for the software to automatically calculate the results.

Main Features
1. There is no representativeness issue when converting the weight gain of the sample pool to Zeta potential.
2. During the measurement process, the sample pool is constantly rotating to avoid the problem of sedimentation of oversized particles.
3. The weight gain of the sample pool includes the total results of large and small particles, and there is no problem of unobservable small particles.
4. Measure with a higher concentration sample solution that is close to the original state used in the petroleum and paper industries.

Mainly suitable for measuring the Zeta potential of particles in high concentration and concentrated dispersion systems, such as:
1. Used in the petrochemical industry: to measure the Zeta potential of mud in oil drilling.
2. Can be used in sewage treatment: The pollutants and media in industrial wastewater often become suspended due to a certain Zeta potential. By reducing the Zeta potential of the system, the charge of the pollutants is reduced, and no longer repulsive forces and coagulation sedimentation occur. Therefore, using this instrument to measure the Zeta potential of the system can control the process conditions and add an appropriate amount of flocculant at appropriate points to reduce the Zeta potential of the system, thereby achieving the goal of purifying water.
3. Used in the papermaking industry. In both paper copying and coating preparation, it is necessary to control the production process by measuring the Zeta potential of the system to obtain high-quality paper.
4. In addition, this instrument can also be widely used in industries such as cosmetics, mineral processing, medical and health care, building materials, ultrafine materials, environmental protection, marine chemistry, etc. It is also one of the important teaching instruments for majors such as chemistry, chemical engineering, and building materials.

Standard components
1. 1 liquid storage tank
2. 1 specially designed electrode
3. 1 control card
4. 1 motor
5. 1 photoelectric transmitter and receiver
6. 1 copy of application software
7. 1 set of electronic manuals and operation manuals

System usage
1. Preparation work:
A、 The basic principle for preparing a supporting dielectric solution is that the salt used should not form insoluble surface compounds or surface complexes with the measured colloid, and should not be easily adsorbed with ions.
B、 Prepare a suspension dispersion, know the correct concentration, and disperse it evenly with ultrasound for later use.
C、 Measure the conductivity of the dispersed system. Prepare suspension dispersions of different concentrations and test run them in the instrument (without adding current or voltage) to measure the transmittance of different concentrations and plot them as T-C.
2. Run JN01.exe to enter the main program, click on the Connect option in the options menu to connect the computer to the thick slurry electrophoresis instrument. If the screen displays "Connect OK!", it means that the computer and instrument have been successfully connected. Set the experimental current value, generally using the 0-25mA range with one decimal place.
3. Choose the electrode polarity of the sample collection chamber that can measure transmittance, such as setting it as positive or negative, usually set it as positive.
4. Inject supporting electrolyte into the sample collection room (leaving about 1/10 of the space), and close the small door of the liquid storage room.
5. Add the test sample to the 4/5 position where the storage chamber is filled with the entire chamber.
6. Open the door of the liquid storage chamber, press the "power on" button to supply constant current, press the touch switch, and measure the supplied voltage with a multimeter. If it exceeds 200V, it indicates that there is an open circuit in the system. Reinstall the sample for testing.
7. Cover the front cover of the instrument, automatically trigger the touch switch, press the "power on" button, and the photoelectric recorder will start recording automatically. Press the "start motor" button to rotate the collection chamber and storage chamber.
8. The instrument automatically records and stops working depending on the situation. Close the small door of the reservoir.
9. Calculate the zeta potential based on photoelectric recording and parameters such as current and time, and save it in a file. The experimental process is shown in Figure 1.

Figure 1 Experimental Process Diagram
10. Clean the instrument, remove the electrodes and store them in a specially prepared storage solution.

Tax inclusive price:RMB 49800.00 (excluding matching computer, including instrument host, experimental operation software, standard components, home delivery installation and debugging training in mainland China, one-year warranty service).

Supporting computer:
To use, a matching computer is required. If the supplier chooses to provide the matching computer, an additional 4000 yuan per unit must be paid to the supplier. The brand computer comes with a three-year on-site warranty from the original factory. If the user configures or uses the existing computer, the requirements are: WinXP operating system or 32-bit Win7 operating system, one USB port, and one empty COM port (RS232 serial port).

Introduction to Shanghai Zhongchen
Shanghai Zhongchen Digital Technology Equipment Co., Ltd. is located in Shanghai. The company relies on domestic universities and research institutions, widely adopts the scientific and technological achievements of relevant experts at home and abroad, and focuses on the development of performance measurement technology products such as colloids and interfaces, powder technology, textile fibers, etc. Our company's products can be widely used in industries such as cosmetics, mineral processing, papermaking, medical and health care, building materials, ultrafine materials, environmental protection, marine, chemical, petroleum, spraying, paint and ink, printing and dyeing, textiles, integrated optics, LCD displays, etc. The company's customer base includes not only domestic universities and research institutes, but also a large number of multinational enterprises such as 3M, Foxconn, HOYA Optics, Youda Optoelectronics, Samsung Electronics, Philips, and listed companies such as Weiyuan Biochemistry, Ningxia Dongfang, Lucky Film, Rainbow Holdings. Its products are exported to the United States, Japan, South Korea, Malaysia, Thailand, Hong Kong and Taiwan, China.
The company develops and produces more than 60 professional instruments in eight series, including contact angle measurement, surface tension measurement, Zeta potential measurement, LB membrane interface measurement, single fiber measurement, bundle fiber measurement, fabric measurement, microscopic measurement, and customized testing machines. It has independent intellectual property rights for its software and hardware, which can guarantee users' rights to after-sales maintenance, upgrades, and services.
The English word 'powereach' in Zhongchen * means' strength comes from everyone ', reflecting the core values and corporate culture of Shanghai Zhongchen's' people-oriented, employees and users are the company's greatest wealth'. Meanwhile, "POWEREACH" is also a registered trademark of Shanghai Zhongchen and will become one of the instrument manufacturer brands of zui *.