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  • Electrochemical Meters

  • Colorimeters

  • Turbidity Meters

  • Titrators

  • Karl Fisher Titrators

  • Electrodes

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INESA Scientific Instrument Co., Ltd

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  • Premium Performance smart Karl Fischer Titrator
    Premium Performance smart Karl Fischer Titrator
  • Reliable intelligent Potentiometric Titrator
    Reliable intelligent Potentiometric Titrator
  • Potentiometric Titrator Premium Performance smart
    Potentiometric Titrator Premium Performance smart
  • Portable Multi-parameter Analyzer High quality versatile
    Portable Multi-parameter Analyzer High quality versatile
  • Preimum performance smart Portable Multi-parameter Analyzer
    Preimum performance smart Portable Multi-parameter Analyzer
  • Benchtop Multi-parameter Analyzer Preimum performance smart
    Benchtop Multi-parameter Analyzer Preimum performance smart
  • Premium Performance smart Portable Dissloved Oxygen Meter
    Premium Performance smart Portable Dissloved Oxygen Meter
  • Preimum performance smart Benchtop Dissolved Oxygen Meter
    Preimum performance smart Benchtop Dissolved Oxygen Meter
  • High quality versatile Portable Conductivity Meter
    High quality versatile Portable Conductivity Meter
  • Premium Performance smart LED Portable Conductivity Meter
    Premium Performance smart LED Portable Conductivity Meter

ABOUT US

Shanghai INESA Scientific Instrument Co., Ltd. is a leading electrochemical instrument, analytical instrument manufacturer in China. REX, as China's first Ph Meter manufacturer in the 1940s, become the largest market occupant in China and now expand its business all around the world. As one of the largest scientific instrument groups in China, REX has gradually grown into a high-tech enterprise with the integration of R&D, production, sales, application, and service. With 80 years of experience in the electrochemical field, REX provides expert water quality test instruments and professional environmental solutions to help our customers against water pollution and environmental degradation. We hope we can live in a greener world with no worry about water in the future.
  • 24
    24 H Online Service No Time Difference.
  • 2011
    We Were Established In 2011.
  • 500
    Our Factory Have More Than 500 Employees.
  • 3000
    More Than 3000 Square Meters Technical R&D Building.
News
  • With the approval of the State Council, the Ministry of Human Resources and Social Security will hold the National Vocational Skills Competition from 2020. The First Vocational Skills Competition of the People's Republic of China was held in Guangzhou from December 10th to 13th, and the competition kicked off on the morning of the 10th. With the theme of "New Era, New Skills, New Dreams", the first competition set up 86 competitions, with a total of more than 2500 contestants and more than 2,300 referees participating in the competition. The competition draws on the concept and model of world competitions and introduces technical standards and competition It is a comprehensive national professional skills competition with the highest specifications, the most projects, the largest scale and the highest level since the founding of the People`s Republic of China. The skill competition has the meaning of "weathervane". Relying on high-quality products and high-quality services, [REX" successfully won the bid of the first National Vocational Skills Competition Water Treatment Technology Project Equipment and Equipment Purchase Project for the PHS competition. In addition, Lei Magnetic also sponsored the WZB-175 turbidity meter for the turbidity detection project in the water treatment technology project of the competition. Our on-site engineers follow up the entire process from entering the museum, to assembly and setup, calibration and commissioning, on-site support, etc., to escort the smooth holding of the contest and obtain high recognition from the organizer.
    2021-01 05
  • On December 16-18, 2020, the "Fifteenth World Pharmaceutical Machinery, Packaging Equipment and Materials China Exhibition" (P-MEC China 2020) will once again land at the Shanghai New International Expo Center. The exhibition focuses on thematic forums and special events on the topics of sterile preparations, solid preparations and traditional Chinese medicines, pharmaceutical factory intelligent manufacturing, biological preparations, API production, clean plant management, green pharmaceuticals, etc., presenting the overall global development trend and production technology of the pharmaceutical machinery industry , Optimization and updating of machinery and equipment, in-depth communication and cooperation, and multi-angle discussion of industry development As an important birthplace of China's analytical instruments, Shanghai INESA will bring its products under the "REX" brand to this grand event. At the same time, there will be a variety of new products and solutions gathered at this exhibition. We sincerely invite you to visit and communicate And seminars, please come!
    2021-01 02
  • 1. What is mercaptan sulfur in oil? Mercaptans are a class of non-aromatic compounds containing sulfhydryl functional groups (-SH). The structure is equivalent to the replacement of oxygen in alcohols by sulfur, such as ethanol (commonly known as alcohol) CH3CH2OH and ethyl mercaptan CH3CH2SH. There are a small amount of mercaptan compounds in petroleum products. The presence of mercaptan not only causes the oil to have an unpleasant smell, but also transforms into toxic and corrosive sulfur dioxide and sulfur trioxide during combustion, which is harmful to the elastic materials of the fuel system. It also corrodes the components of the fuel system, affecting the life of related machinery, such as automobile engines. Therefore, it is very important to control the mercaptan content in petroleum products. 2. The sulfur contained in mercaptan in oil is called mercaptan sulfur content. National standards mandate the mercaptan sulfur content in a series of oil products such as gasoline, diesel, kerosene, distillate fuel, and jet fuel. So how to determine the content of mercaptan sulfur in oil? . Use potentiometric titrator to determine mercaptan sulfur content in oil (1) Instrument: REX ZDJ-5B Automatic Potentiometric Titrator (2) Electrodes: 216 type silver electrode and 231-01 type pH glass electrode. (3) Reagents: ultrapure water, 1-butanethiol, 1-heptanethiol, potassium iodide, concentrated nitric acid, isopropanol, sodium acetate, sodium sulfide, silver nitrate, etc. (4) Sample: commercial gasoline; butane mercaptan standard solution (5) The measurement process is as follows: Electrode pretreatment ----- Standard solution----- Blank titration----- Sample Measurment
    2020-12 24
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