On July 18, 2024, officials and experts from the Environmental Protection and Sustainable Development Seminar for Developing Countries organized by the Ministry of Ecology and Environment visited Dongdong Analytical Instruments Co., Ltd. for on-site visits and professional training to gain a deeper understanding of the practical application of Dongdong Analytical Testing Equipment in the field of environmental protection.
At the beginning of the training, Mr. Li Xiaoou, general manager of East-West Analytical Instruments Co., Ltd., and Ms. Zhang Jie, deputy general manager, extended a warm welcome to the members of the training class. Mr. Li and the members of the training class briefly exchanged views on the application of East-West analytical testing equipment in the environmental field.
Subsequently, the members of the seminar first received professional training for the instrument, and then visited the factory workshop of East-West Analysis Company. Through the visit, the members gained an in-depth understanding of the GC-4400 portable photoionization gas chromatograph and the application of GC-4200 gas chromatograph in the field of environmental protection.
The company adheres to the concept of environmental protection and sustainable development, and vigorously promotes the research and development of testing equipment for green development. In the field of environmental testing equipment, the company's product line is rich and diverse, covering gas chromatography, liquid chromatography, spectroscopy, mass spectrometry and other high-precision testing instruments. These equipment provide strong technical support for protecting the environment and promoting green development.
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GC-4400 Portable Photoionization Gas Chromatograph
Research background Since the Vienna Convention for the Protection of the Ozone Layer and the International Environmental Convention - Montreal Protocol on Substances that Deplete the Ozone Layer were officially signed, our country's government has attached great importance to it and taken many effective measures. Among them, the Ministry of Ecology and Environment has continued to carry out ODS special project enforcement actions to combat illegal acts and ensure that the results achieved in protecting the global ozone layer can be stable and sustainable.
The GC-4400 portable photoionization gas chromatograph developed by East-West Analysis and its supporting solution for detecting ODS substances in foaming agents have been authoritatively recognized by the Ministry of Environmental Protection. In addition, the instrument has successfully won the bidding in the rapid detection and procurement project of foaming agents sponsored by the Environmental Protection Foreign Cooperation Center of the Ministry of Ecology and Environment for many times.
The GC-4400 portable photoionization gas chromatograph utilizes the principles of physics and integrates multidisciplinary technologies such as spectroscopy, electronics, analytical chemistry, precision machinery, new materials, new processes and integrated circuits. Its unique design enables it to perform ultra-high sensitivity analysis of trace chemicals, with low detection limit and wide linear range. More importantly, the EW-4400 does not require hydrogen and combustion-supporting gases, direct injection does not require pre-enrichment, and its non-destructive and portable characteristics make it more convenient in practical applications.
In the application field environment, gas samples can be directly injected and analyzed without pretreatment, concentration and enrichment, so there is no sample pollution, low collection rate and other problems, and the results are accurate and reliable. Small in size and light in weight, it is suitable for emergency detection of toxic and harmful gases at the scene of environmental accidents.
Food safety, such as the determination of the residue of solvent No. 6 in edible oil, and the analysis of food freshness (mercaptan, thioether, aldehyde, etc.).
Scientific research, ecological, agricultural, chemical synthesis and other research processes in the detection and study of trace gas.
Analysis and detection of benzene, acetone, ethyl acetate, etc. produced during the production of rocket propellant.
Anti-chemical and anti-terrorist war, analysis and detection of neurotoxic and erosive gases.
Indoor air pollution, benzene, toluene, xylene, ammonia and other harmful gases emitted from decoration materials and furniture in living rooms and car boxes.
Application Spectrogram Determination of ODS in Foaming Agent
Separation of reduced sulfur compounds
最小检测浓度：CS2 40ppb，H2S 35ppb，CH3CH2SH 55ppb，DMS 62ppb。
Analysis of atmospheric benzene series
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[Solution] EW-4430 Portable Foaming Agent Rapid Detector for Identifying Ozone-Depleting Substances [Good News] Congratulations to the Portable Foaming Agent Rapid Detector for East-West Analysis and won the bidding of the Ministry of Environmental Protection Environmental Protection Foreign Cooperation Center Project
