{"title":"利用峰值匹配和多通道分析仪技术对fab -生成离子进行高分辨率精确质量测量。","authors":"Keith L. Clay, Robert C. Murphy","doi":"10.1016/0020-7381(83)85123-7","DOIUrl":null,"url":null,"abstract":"<div><p>Accurate mass measurement at a resolution of 10,000 has been performed with very small ion currents generated by fast atom bombardment ionization. With the use of a peak matching unit to switch accelerating voltage and a multi-channel analyzer to acquire the data, determination of exact mass can be routinely made with less than 5 ppm error on ion currents of insufficient intensity for accurate peak matching in the conventional mode. Glycerol cluster ions generated during the FAB experiment are suitable mass references. Calibration of the peak matching unit voltage offset allows the use of a single reference mass for exact mass calculation.</p></div>","PeriodicalId":13998,"journal":{"name":"International Journal of Mass Spectrometry and Ion Physics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1983-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0020-7381(83)85123-7","citationCount":"8","resultStr":"{\"title\":\"High resolution accurate mass measurements of FAB-generated ions by use of peak matching and multichannel analyzer techniques.\",\"authors\":\"Keith L. Clay, Robert C. Murphy\",\"doi\":\"10.1016/0020-7381(83)85123-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Accurate mass measurement at a resolution of 10,000 has been performed with very small ion currents generated by fast atom bombardment ionization. With the use of a peak matching unit to switch accelerating voltage and a multi-channel analyzer to acquire the data, determination of exact mass can be routinely made with less than 5 ppm error on ion currents of insufficient intensity for accurate peak matching in the conventional mode. Glycerol cluster ions generated during the FAB experiment are suitable mass references. Calibration of the peak matching unit voltage offset allows the use of a single reference mass for exact mass calculation.</p></div>\",\"PeriodicalId\":13998,\"journal\":{\"name\":\"International Journal of Mass Spectrometry and Ion Physics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1983-09-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0020-7381(83)85123-7\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Mass Spectrometry and Ion Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0020738183851237\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Mass Spectrometry and Ion Physics","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0020738183851237","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
High resolution accurate mass measurements of FAB-generated ions by use of peak matching and multichannel analyzer techniques.
Accurate mass measurement at a resolution of 10,000 has been performed with very small ion currents generated by fast atom bombardment ionization. With the use of a peak matching unit to switch accelerating voltage and a multi-channel analyzer to acquire the data, determination of exact mass can be routinely made with less than 5 ppm error on ion currents of insufficient intensity for accurate peak matching in the conventional mode. Glycerol cluster ions generated during the FAB experiment are suitable mass references. Calibration of the peak matching unit voltage offset allows the use of a single reference mass for exact mass calculation.
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