Yixue Cao, Ping Chen, Xuesong Zhang, Yuanyuan Xie, Lichuan Zhang, Chenxin Wu, Lei Hua, Haiyang Li
{"title":"扩展外离子注入到离子阱/TOFMS: SIMION分析的m/z范围","authors":"Yixue Cao, Ping Chen, Xuesong Zhang, Yuanyuan Xie, Lichuan Zhang, Chenxin Wu, Lei Hua, Haiyang Li","doi":"10.1002/jms.5152","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Ion trap usually serves as a TOF pusher region in ion trap time-of-flight mass spectrometer (IT/TOF), achieving benefits of high duty cycle, MS/MS capability, and high mass resolution. While a short ion trap rod length improves TOF resolution, it limits the mass range in coaxial IT/TOF. Through a computational study based on SIMION simulations, this work systematically investigates the influence of geometric parameters (trap rod length) and voltage parameters (bias DC voltage, end-cap electrode voltage) on the mass range of coaxial IT-TOF systems. By optimizing length of trap rod, over 90% injection efficiency was achieved within a <i>m/z</i> 400–1400 without sacrificing mass resolution. By implementing DC bias voltage adjustments for low-m/z ions and step voltage optimization on end-cap electrodes for high-<i>m/z</i> ions, the simulated mass range is extended to <i>m/z</i> 200–1400 with minimal mass discrimination. All above these findings are derived solely from simulation analysis.</p>\n </div>","PeriodicalId":16178,"journal":{"name":"Journal of Mass Spectrometry","volume":"60 7","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Extend m/z Range of External Ion Injection Into Ion Trap/TOFMS: SIMION Analysis\",\"authors\":\"Yixue Cao, Ping Chen, Xuesong Zhang, Yuanyuan Xie, Lichuan Zhang, Chenxin Wu, Lei Hua, Haiyang Li\",\"doi\":\"10.1002/jms.5152\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>Ion trap usually serves as a TOF pusher region in ion trap time-of-flight mass spectrometer (IT/TOF), achieving benefits of high duty cycle, MS/MS capability, and high mass resolution. While a short ion trap rod length improves TOF resolution, it limits the mass range in coaxial IT/TOF. Through a computational study based on SIMION simulations, this work systematically investigates the influence of geometric parameters (trap rod length) and voltage parameters (bias DC voltage, end-cap electrode voltage) on the mass range of coaxial IT-TOF systems. By optimizing length of trap rod, over 90% injection efficiency was achieved within a <i>m/z</i> 400–1400 without sacrificing mass resolution. By implementing DC bias voltage adjustments for low-m/z ions and step voltage optimization on end-cap electrodes for high-<i>m/z</i> ions, the simulated mass range is extended to <i>m/z</i> 200–1400 with minimal mass discrimination. All above these findings are derived solely from simulation analysis.</p>\\n </div>\",\"PeriodicalId\":16178,\"journal\":{\"name\":\"Journal of Mass Spectrometry\",\"volume\":\"60 7\",\"pages\":\"\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2025-06-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Mass Spectrometry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/jms.5152\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"BIOCHEMICAL RESEARCH METHODS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Mass Spectrometry","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/jms.5152","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"BIOCHEMICAL RESEARCH METHODS","Score":null,"Total":0}
Extend m/z Range of External Ion Injection Into Ion Trap/TOFMS: SIMION Analysis
Ion trap usually serves as a TOF pusher region in ion trap time-of-flight mass spectrometer (IT/TOF), achieving benefits of high duty cycle, MS/MS capability, and high mass resolution. While a short ion trap rod length improves TOF resolution, it limits the mass range in coaxial IT/TOF. Through a computational study based on SIMION simulations, this work systematically investigates the influence of geometric parameters (trap rod length) and voltage parameters (bias DC voltage, end-cap electrode voltage) on the mass range of coaxial IT-TOF systems. By optimizing length of trap rod, over 90% injection efficiency was achieved within a m/z 400–1400 without sacrificing mass resolution. By implementing DC bias voltage adjustments for low-m/z ions and step voltage optimization on end-cap electrodes for high-m/z ions, the simulated mass range is extended to m/z 200–1400 with minimal mass discrimination. All above these findings are derived solely from simulation analysis.
期刊介绍:
The Journal of Mass Spectrometry publishes papers on a broad range of topics of interest to scientists working in both fundamental and applied areas involving the study of gaseous ions.
The aim of JMS is to serve the scientific community with information provided and arranged to help senior investigators to better stay abreast of new discoveries and studies in their own field, to make them aware of events and developments in associated fields, and to provide students and newcomers the basic tools with which to learn fundamental and applied aspects of mass spectrometry.