Non-isobaric time-of-flight correction for isobar resolving in MR-ToF mass spectrometry
作者: Paul FischerStefan KnauerGerrit MarxLutz Schweikhard
作者单位: 1Institut für Physik, Universität Greifswald, 17489 Greifswald, Germany
刊名: International Journal of Mass Spectrometry, 2018, Vol.432 , pp.44-51
来源数据库: Elsevier Journal
DOI: 10.1016/j.ijms.2018.07.004
关键词: Multi-reflection time-of-flight mass spectrometryMR-ToF MSOffline correctionIsobar separation
原始语种摘要: Abstract(#br)A development in multi-reflection time-of-flight (MR-ToF) mass spectrometry is presented with which isobars are resolved by means of an offline correction with the signal of a non-isobaric ion species. The method is demonstrated for a pair of Cr 2 + isobars with a relative mass difference of 1.8 ∙ 10 - 5 , with either an additional, non-isobaric Cr 2 + or a CrO + ion appearing in the same time-of-flight spectrum, although at a different number of revolutions during the same storage time. This is in contrast to earlier applications where ToF shift corrections are performed with ions at identical revolution numbers, typically isobars that are also acting as mass-reference ions. It is shown that ions of virtually any mass simultaneously stored in the MR-ToF analyzer can be...
全文获取路径: Elsevier  (合作)
影响因子:2.142 (2012)

  • correction 校正
  • flight 飞行
  • isobaric 等压的
  • spectrometry 光谱测定
  • numbers 数目
  • typically 典型地
  • offline 脱机
  • demonstrated 探明的储量
  • resolving 解析过程
  • although 虽然