Miniaturized mass-selective detector with atmospheric pressure chemical ionization
Related Experiment Video
Updated: Aug 29, 2026

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry
Published on: March 9, 2018
A L Makas1, M L Troshkov, A S Kudryavtsev
1Design Technological Institute of Instrument Engineering for Geophysics and Ecology, Siberian Branch of the Russian Academia of Sciences, 3/6 Academician Koptyug Avenue, Novosibirsk 90 630090, Russia. glue@uiggm.nsc.ru
Abstract:
The miniaturized mass-spectrometric detector with atmospheric pressure chemical ionization (APCI) is described. The analyzer employed in this instrument is the monopole with rod 54 mm in length and 2 mm in radius, which retains its efficiency up to 0.13 Pa ( approximately 10(-3)Torr). Together with the ion source, channeltron ion detector, radio frequency power supply and preamplifier, it is packed into a case with dimension of 185 mm x 100 mm x 70 mm. Mass spectrometer with the whole vacuum system weighs about 20 kg. In spite of low power of the vacuum system, the limit of detection at ppt level is achieved. The "strong" fragmentation mode is suggested for high-specific detection of phosphor-containing substances. The detector conforms to multicapillary column attachment.
Related Concept Videos
Chemical Ionization (CI) Mass Spectrometry
Gas Chromatography: Types of Detectors-II
High-Performance Liquid Chromatography: Types of Detectors
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview
Tandem Mass Spectrometry
Mass Analyzers: Common Types
