WORLD SCI-TECH R&D ›› 2023, Vol. 45 ›› Issue (2): 210-220.doi: 10.16507/j.issn.1006-6055.2022.07.004

Special Issue: 科研仪器与设施

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Comparative Analysis on Mass Spectrometer Technology Based on Export Control

CHEN Fang1   SHEN Xiang1   WANG Xuezhao1,2   LIU Xiwen1,2   ZHU Yujing1,2   WU Ming1,2   

  1. 1. Institute of Chinese academy of Science, Beijing 100190, China; 2. Department of library, Information and Archives Management, School of Economics and Management, University of Chinese Academy of Science, Beijing 100190, China
  • Online:2023-04-25 Published:2023-04-27

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Abstract:

In order to analyze the key and core technology of mass spectrometers and reveal the competitive advantages between countries, patent technologies of the global mass spectrometer are identified by artificial intelligence, and the research theme layout of global mass spectrometer manufacturing technology is obtained. Through a hybrid approach of supervised classification with unsupervised clustering, the research theme is compared with the mass spectrometer involved in export control. Results of supervised classification experiments show that the random forest algorithm has the best classification effect, with an accuracy of 94% and a recall rate of 94.3%. The clustering algorithm divides the global mass spectrometer manufacturing technology into five fields: mass spectrometer machine technology, ion mass analyzer technology, mass spectrometer data processing module, sampling components and devices, and ion source core technology. Then, this paper analyzes the research status and competition situation of mass spectrometer manufacturing technology between China and several key economic regions such as the United States, the European Union and Japan. It shows that China has made rapid progress in the manufacturing technology of mass spectrometers in the recent ten years, with the number of patents exceeding half of the number of global patents. China has obvious advantages in the themes such as sampling components and devices and mass spectrometer data processing module, while in the themes of mass spectrometer machine technology, ion mass analyzer technology, and ion source core technology, China has an obvious weakness. Results show China has certain risks in the face of American and Western technology export control regulation.

Key words: Mass Spectrometer, Export Control, Technology Gap, Text Mining