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Liaoning Kerui Chromatography showcased its presence at the 28th National Annual Conference on Specialty Gases, presenting a comprehensive solution for trace impurity analysis in 7N‑grade ultra‑pure specialty gases.
The 28th National Annual Conference on Specialty Gases Recently It was held in Shanghai. Liaoning Kerui Chromatography Technology Co., Ltd. was invited to attend and delivered a presentation titled “…”. A special presentation titled “Trace Impurity Analysis of 7N‑Grade Ultra‑Pure Specialty Gases: Comprehensive Solutions and Hands‑On Operational Experience” was delivered, bringing together on‑site experts and industry peers to discuss advanced ultra‑pure specialty gas detection technologies and emerging industry trends.
This conference is themed around Under the theme “Innovation-Driven, Collaborative Development, and Smart Leadership for the Future,” the event brought together numerous representatives from the specialty gases industry chain, universities, and research institutes. Participants engaged in discussions on key topics such as the domestication of electronic-grade specialty gases, ultra-high-purity gas testing, the development of standard gases, the establishment of quality management systems, and the safe and sustainable growth of the industry, thereby building consensus to advance technological innovation and collaborative development within the specialty gases sector.
Focus 7N-grade ultra‑pure specialty gas analysis: sharing frontline practical experience.
As industries such as semiconductors, display panels, new energy, and new materials continue to grow rapidly, the demands on the purity and consistent quality of specialty gases in manufacturing processes are steadily increasing. The impurity levels in 7N‑grade ultra‑pure specialty gases have reached the ppb range, and in certain applications, detection capabilities at the ppt level are even required, placing higher demands on the analytical system’s sensitivity, anti‑interference performance, and data reliability.
During the conference, Liaoning Kerui Chromatography Luo Hui, General Manager of the Technology Co., Ltd. Around Key challenges in trace impurity analysis for 7N‑grade ultra‑pure specialty gases were discussed, and the company’s accumulated experience in developing comprehensive analytical solutions and their field applications was shared.
The presentation covers proprietary analytical methods for various gas matrices, as well as separation using multiple valves, columns, and flow paths. PDHID’s high-sensitivity detection, sample introduction, and closed-loop gas‑path control, as well as key method‑validation parameters such as the limit of detection, repeatability, linearity, and column efficiency. In the speech Propose, 7N‑grade ultra‑pure specialty gas analysis cannot be accomplished with a single instrument; it is a systems‑level undertaking that encompasses sample introduction, gas‑path control, chromatographic separation, trace‑level detection, standard‑gas calibration, method validation, and on‑site operations and maintenance. Only through coordinated control across all stages can we advance analytical results from merely “being measurable” to achieving “accurate, stable, and reliable measurements.”
On-site data visualization solution: stability and reliability
The keynote presentation, drawing on field‑tested data from actual projects, highlighted the application achievements of Liaoning Kerui Chromatography across various carrier gases, including high‑purity oxygen, high‑purity nitrogen, high‑purity helium, and high‑purity carbon dioxide.
Field cases demonstrate that the relevant solutions can… Trace impurities such as H₂, O₂, N₂, Ar, CH₄, CO, CO₂, Kr, Ne, and N₂O are analyzed. Under various matrix conditions, an exclusive chromatographic method combined with a multi‑channel collaborative design enables the effective separation of target analytes and their detection at the ppb level.
In addition, the presentation shared validation results for baseline noise and drift, the limit of detection, repeatability under continuous injection, and multi-point dilution linearity, further underscoring the importance of a stable gas delivery system, low system background, and comprehensive method validation for the analysis of ultra‑pure specialty gases.
Deepen industry collaboration to jointly advance the development of specialty gas detection technologies.
During the conference, Liaoning Kerui Chromatography engaged in in-depth discussions with industry experts and corporate representatives on topics including electronic-grade gas analysis, ultra-high-purity gas quality control, trace impurity analysis, and field‑application requirements, thereby gaining a clearer understanding of the emerging demands of the specialty gases sector for enhanced detection sensitivity, system stability, and data reliability.
This participation in the conference and the accompanying keynote speech represent Liaoning Kerui Chromatography’s showcase. This event represents a significant opportunity to showcase the technological achievements in trace‑impurity analysis for 7N‑grade ultra‑pure specialty gases and to share frontline application experience, while further strengthening the company’s communication and collaboration with both upstream and downstream players in the industry.
Looking ahead, Liaoning Kerui Chromatography Technology Co., Ltd. will remain focused on chromatographic analysis and ultra‑pure specialty gas detection, guided by real‑world application needs. The company will continue to advance analytical technology R&D, optimize integrated solutions, and build on field experience, providing professional, reliable technical support for quality control of electronic specialty gases and ultrapure gases, thereby contributing to the high‑quality development of China’s specialty gas industry.
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