The first national standard for zeta potential analysis electrophoresis of colloidal particles has been released, with standard number: GB/T 32668-2016，This national standard came into effect on November 1, 2016.The microelectrophoresis method is based on the JS94 series microelectrophoresis (zeta potential analyzer) developed and exclusively produced by Shanghai Zhongchen Digital Technology Equipment Co., Ltd. The software interface of Shanghai Zhongchen JS94 series microelectrophoresis (zeta potential analyzer) is shown in the image on page 16 of the standard.

The microelectrophoresis (Zeta potential meter) developed and exclusively produced by Shanghai Zhongchen Digital Technology Equipment Co., Ltd. has been available for 26 years and is a project supported by the National Innovation Fund.This instrument can be used to determine the solid-liquid interfacial electrical properties (zeta potential) of dispersed system particles, as well as to measure the interfacial electrical properties of emulsion droplets. It can also be used to determine the isoelectric point and study the mechanism of interfacial reaction processes. 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. Compared with other similar instruments at home and abroad, it has significant advantages. It can be widely used in industries such as cosmetics, mineral processing, papermaking, 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, medicine, and building materials.

JS94J2 microelectrophoresis (Zeta potential meter) standard components
1. 1 USB standard digital CCD
2. 1 silver electrode
3. 1 platinum electrode
4. 1 POM electrode
5. 10 electrophoresis cups
6. 1 rice marker
7. 1 copy of application software
8. 1 copy of instruction manual
9. 1 electronic version of the operation manual
10. 1 data collection, analysis, processing and operation terminal with pre installed applications and drivers

System parameters of JS94J2 microelectrophoresis analyzer (Zeta potential analyzer)
*1. Adopting microelectrophoresis method, in accordance with GB/T 32668-2016 "General rules for gel particle zeta potential analysis electrophoresis method"
2. Power consumption:< 150W power supply input voltage: 220V 50Hz
3. Applicable environment: shockproof platform Applicable temperature range: room temperature to 35 ℃, reading accuracy of 0.1
4. Measurement accuracy: System error within 5%
*5. Suitable for dispersion systems ranging from 0.1 to 10 μ m (both aqueous and organic systems can be measured)
6. PH range: generally used in the range of 2.0 to 12.0, but can also be used in the range of 1.6 to 13.0
7. Resolution 12pixel/μ m, Japanese WDK high-power microscope optical system, working distance 7mm
*8. Cup shaped open electrophoresis device, equipped with a specially designed electrode bracket
*9. Measurable zeta potential and isoelectric point of dispersed systems

Characteristics of JS94J2 Microelectrophoresis Instrument (Zeta Potentiometer)
1. The instrument adopts a newly designed new and simple electrophoresis cell, using a 0.5cm thick glass cup with electrodes built into the cell. The electrophoresis cup and built-in electrode undergo precise microfluidics calculation and surface treatment to form a completely different electrophoresis device from traditional electrophoresis cells. The sample usage during testing is extremely small, only 0.5ml per time, easy to clean, convenient to use, and economical and practical.
2. The electrode holder is carefully designed and closely matched with the electrophoresis cup to form a cup-shaped open electrophoresis device. The electrodes are made of silver, platinum, and titanium metal wires, and after surface treatment, the working state is stable.
3. Well made rice markers are placed in electrophoresis cups and placed on a 3D platform. After adjusting the 3D platform, a clear rice image can be seen on the computer screen, and the measurement position can be found without any static layer issues.
4. The electrophoresis instrument adopts a semiconductor luminescent near-field optical system with a power of only a few tens of microwatts, which will not affect the measurement environment and accuracy due to heat generation. The optical system has been adjusted, and the magnification has been increased. Short wavelength blue and green light are used, so smaller particles can be seen clearly.
*5. Using a constant voltage low-frequency conversion power supply can prevent polarization and greatly improve measurement speed. The positive and negative switching time is continuously adjustable from 0.30 seconds to 1.20 seconds, and the sampling time only takes 3 to 10 seconds. The voltage between electrodes can be adjusted as needed.
*6. Using a temperature sampling probe, it automatically and continuously samples the ambient temperature, returns it to the computer, and automatically adjusts the parameters for calculating the Zeta potential. Using computer multimedia technology, at a given beat, automatically take continuous "photos" of ultrafine particles magnified 1200 times, providing a total of four grayscale images for analysis and calculation in both directions.

JS94J2 microelectrophoresis analyzer (Zeta potential analyzer) price including tax
1. JS94J2 microelectrophoresis analyzer (Zeta potential analyzer) price including tax: RMB 83500.00， The price includes the instrument host, supporting computer, experimental operation software, standard components, free on-site installation and debugging training in major cities in mainland China, one-year warranty service, and lifelong free software upgrades.
2. The JS94J2 microelectrophoresis instrument (Zeta potential meter) must be connected to a computer before use. This instrument has special requirements for computer configuration and should be provided by our factory (DELL computer/original factory three-year on-site warranty). The above price includes the matching computer.
3. If you need to compare the advantages and disadvantages of using video method to measure zeta potential and laser diffraction method to measure zeta potential, please refer to "Precision and Accuracy - Discussion on Two Measurement Methods for Zeta Potential".

Introduction to Shanghai Zhongchen
Shanghai Zhongchen Digital Technology Equipment Co., Ltd. won the second prize of National Scientific Progress Award in 2019.The company relies on well-known domestic universities and research institutions, widely adopts the latest 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 not only includes major domestic universities and research institutes, but also a large number of multinational enterprises such as Apple, 3M, Foxconn, HOYA Optics, AU Optronics, Samsung Electronics, Philips, OPPO, as well as listed companies such as Weiyuan Biochemical, BYD, Xinwangda, Desai Battery, Helitai, CATL, Changxin Technology, BOE, Ningxia Oriental, Crystal Optoelectronics, Rainbow Holdings, SANDISK, etc. The products are exported to the United States, Egypt, Japan, South Korea, Malaysia, Thailand, India, Indonesia, Singapore, Hong Kong, Macao, Taiwan and other regions.
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 complete independent intellectual property rights for its software and hardware, which can guarantee users' rights to after-sales maintenance, upgrades, and services.
Zhongchen's original English word "powereach" means "strength comes from everyone", reflecting Shanghai Zhongchen's core values and corporate culture of "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 most famous international instrument manufacturer brands.