Wide-energy programmable microwave plasma-ionization for high-coverage mass spectrometry analysis

Fengjian Chu, Gaosheng Zhao, Wei Wei, Nazifi Sani Shuaibu, Hongru Feng (), Yuanjiang Pan () and Xiaozhi Wang ()
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Fengjian Chu: Zhejiang University
Gaosheng Zhao: Shanghai University
Wei Wei: Zhejiang University
Nazifi Sani Shuaibu: Zhejiang University
Hongru Feng: Zhejiang University
Yuanjiang Pan: Zhejiang University
Xiaozhi Wang: Zhejiang University

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Although numerous ambient ionization mass spectroscopy technologies have been developed over the past 20 years to address diverse analytical circumstances, a single-ion source technique that can handle all analyte types is still lacking. Here, a wide-energy programmable microwave plasma-ionization mass spectrometry (WPMPI-MS) system is presented, through which MS analysis can achieve high coverage of substances with various characteristics by digitally regulating the microwave energy. In addition, ionization energy can be rapidly scanned using programmable waveforms, enabling the simultaneous detection of biomolecules, heavy metals, non-polar molecules, etc., in seconds. WPMPI-MS performs well in analyzing real samples, rapidly analyzing nine toxicological standards in one drop of serum, and demonstrating good quantification and liquid chromatography coupling capability. The WPMPI-MS has also been used to detect soil extracts, solid pharmaceuticals, and landfill leachate, further demonstrating its robust analytical capabilities for real samples. The prospective uses of the technology in biological and chemical analysis are extensive, and it is anticipated to emerge as a viable alternative to commercially available ion sources.

Date: 2024
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DOI: 10.1038/s41467-024-50322-z

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