The Mass Spectrometry society of Japan - The 68th Annual Conference on Mass Spectrometry, Japan
Japanese

Abstract

Table of contents

Timetable

Plenary Lectures

Award Lecture

Oral Sessions (Day1, Day2, Day3)

Poster Presentations (Day1, Day2, Day3)

Panel Discussion

Luncheon Seminars (Day1, Day2, Day3)

Corporate Program

Oral Sessions

Day 2, June 23（Thu.）　10:00-10:20　Room C (411 and 412)

2C-O1-1000　　PDF

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

(1Hokkaido Univ., 2RIKEN, 3Osaka Univ., 4ISAS)
oKenichi Bajo1, Jun Aoki2, Morio Ishihara3, Hisayoshi Yurimoto1,4

We propose an autocorrelation function to resolve an overtaking problem in multiturn time-of-flight mass spectrometer (TOF-MS). The function analyzes a characteristic period for one lap of each ion packet and derives a mass spectrum from a signal pulse train composed of multiturn ion packets. In order to detect the ion pulse train, a new nondestructive ion detector has been developed and installed into a multiturn orbit of MULTUM-S II. This detector is composed of electrostatic induced charge detector, preamplifier, and digitizer. Conventional ion detector of TOF-MS is worked after collection of the signal pulse train. We integrated the mass spectra collected by the nondestructive and conventional detectors to improve mass resolving power and mass accuracy. The integrated mass spectrum performed a mass resolving power of 29,000 for m/z 69 and mass accuracy of 20 ppm (RMS) for perfluorotributylamine gas sample.