Analytical Sciences

Abstract − Analytical Sciences, 36(5), 539 (2020).

Time-correlated Single Ion Counting Mass Spectrometer with Long and Short Time-of-Flight Tubes and an Evaluation of Its Performance for Use in Trace Analysis of Allergenic Substances
Tiantian JU,* Katsunori YOSHINAGA,*,** Tomoko IMASAKA,** Hiroshi NAKAMURA,* and Totaro IMASAKA*,***
*Division of International Strategy, Center of Future Chemistry, Kyushu University, 744 Motooka, Nishi, Fukuoka 819-0395, Japan
**Department of Environmental Design, Faculty of Design, Kyushu University, 4-9-1 Shiobaru, Minami, Fukuoka 815-8540, Japan
***Hikari Giken, Co., 2-10-30 Sakurazaka, Chuo, Fukuoka 810-0024, Japan
An analyte molecule was ionized using a femtosecond laser as the ionization source and was measured by a twin-type time-of-flight mass spectrometer with long (42 cm) and short (6.4 cm) flight tubes. The signal was measured using an analog signal digitizer and a time-correlated single ion counting system, and performance was evaluated by comparing data obtained from both instruments. The short mass spectrometer had a mass resolution of 450 and was used in the trace analysis of allergenic substances in a fragrance.