open access

https://hdl.handle.net/2115/90847

Development of electrostatic-induced charge detector for multiturn time-of-flight mass spectrometer

英語

nondestructive ion detection

2022-11-22

John Wiley & Sons

Journal of Mass Spectrometry

57(11)

e4892

We developed an autocorrelation function to resolve the overtaking problem in a multiturn time-of-flight mass spectrometer (TOF-MS). The function analyzes the characteristic period for one lap of each ion packet and derives a mass spectrum from a signal pulse train composed of multiturn ion packets. To detect the ion pulse train, a new nondestructive ion detector was developed and installed in the multiturn orbit of MULTUM-S II. This detector is composed of an electrostatically induced charge detector, a preamplifier, and a digitizer. The electrostatic noises are smaller than the single-ion signals owing to the accumulation of the multiturn TOF spectrum. The conventional ion detector of TOF-MS is operated after collecting the signal pulse train. The multiturn TOF spectrum was convolved with an autocorrelation function to derive the mass spectrum. The convolved mass spectrum performed a mass resolving power (MRP) of 28,200 at m/z 69 and mass accuracy of 28 ppm for the perfluorotributylamine (PFTBA) gas sample.

学術雑誌論文

Accepted Manuscript

This is the peer reviewed version of the following article: Bajo, K, Aoki, J, Ishihara, M, et al. Development of electrostatic-induced charge detector for multiturn time-of-flight mass spectrometer. J Mass Spectrom. 2022; 57( 11):e4892., which has been published in final form at https://doi.org/10.1002/jms.4892. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

1076-5174