V-shaped ion funnel proton transfer reaction mass spectrometry. Issue 4 (4th July 2019)

• Record Type: Journal Article
• Authors: Wang, Yujie; Dong, Kexiu; Chu, Yannan
• Is Part Of: Instrumentation science & technology. Volume 47:Issue 4(2019)
• Page Start: 410
• Page End: 422
• Publication Date: 2019-07-04
• Subjects: Detectable sensitivity -- direct current-radio frequency (DC-RF) electric field -- ion funnel (IF) -- proton transfer reaction mass spectrometry (PTR-MS) -- volatile organic compounds (VOCs); Scientific apparatus and instruments -- Periodicals; 681.2
• DOI: 10.1080/10739149.2019.1579100
• Languages: English
• ISSNs: 1073-9149

Abstract

Abstract: A V-shaped ion funnel (IF) drift tube was developed for proton transfer reaction mass spectrometry (PTR-MS). The ion transmissions were characterized at variable radio frequency voltages and frequencies to obtain optimized conditions while considering the effects of radial-focusing, reaction rate, and collision-induced dissociation. The improvements in sensitivity for common compounds were experimentally obtained and ranges from 2 to 22 times depending on the analyte. The product ions distributions were also studied for V-shaped IF PTR-MS. Together with the literature reports for U-shaped IF PTR-MS, a valuable and comprehensive reference is provided for future optimization of IF PTR-MS and other mass spectrometers.