{"title":"The Development of the Digital Ion Trap","authors":"Li Ding, Lulu Sun, Weimin Wang","doi":"10.1002/mas.70022","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>The digital ion trap (DIT) is an ion trap in which the periodic trapping field is driven by digital signals—typically with a rectangular waveform—generated by fast-switching circuits. This paper reviews the research history of rectangular wave-driven quadrupole fields, as well as the invention and development of DITs. It summarizes studies on ion motion stability and secular frequency in both 3D and 2D configurations of DITs and discusses differences in the stability diagrams of DITs arising from different definitions of the <i>a</i> and <i>q</i> parameters. Additionally, this review outlines the performance advantages of the digital driving method in mass analysis and lists the novel analytical functions that have been realized using DIT technology. Finally, it presents the latest developments in commercial DIT instruments.</p>\n </div>","PeriodicalId":206,"journal":{"name":"Mass Spectrometry Reviews","volume":"45 6","pages":"1040-1063"},"PeriodicalIF":6.0000,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mass Spectrometry Reviews","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/mas.70022","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/3/19 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"SPECTROSCOPY","Score":null,"Total":0}
引用次数: 0
Abstract
The digital ion trap (DIT) is an ion trap in which the periodic trapping field is driven by digital signals—typically with a rectangular waveform—generated by fast-switching circuits. This paper reviews the research history of rectangular wave-driven quadrupole fields, as well as the invention and development of DITs. It summarizes studies on ion motion stability and secular frequency in both 3D and 2D configurations of DITs and discusses differences in the stability diagrams of DITs arising from different definitions of the a and q parameters. Additionally, this review outlines the performance advantages of the digital driving method in mass analysis and lists the novel analytical functions that have been realized using DIT technology. Finally, it presents the latest developments in commercial DIT instruments.
期刊介绍：
The aim of the journal Mass Spectrometry Reviews is to publish well-written reviews in selected topics in the various sub-fields of mass spectrometry as a means to summarize the research that has been performed in that area, to focus attention of other researchers, to critically review the published material, and to stimulate further research in that area.
The scope of the published reviews include, but are not limited to topics, such as theoretical treatments, instrumental design, ionization methods, analyzers, detectors, application to the qualitative and quantitative analysis of various compounds or elements, basic ion chemistry and structure studies, ion energetic studies, and studies on biomolecules, polymers, etc.
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