Development of dielectric-barrier-discharge ionization

Abstract

Dielectric-barrier-discharge ionization is an ambient-ionization technique. Since its first description in 2007, it has attracted much attention in such fields as biological analysis, food safety, mass-spectrometry imaging, forensic identification, and reaction monitoring for its advantages, e.g., low energy consumption, solvent-free method, and easy miniaturization. In this review a brief introduction to dielectric barrier discharge is provided, and then a detailed introduction to the dielectric-barrier-discharge-ionization technique is given, including instrumentation, applications, and mechanistic studies. Based on the summary of reported work, possible future uses of this type of ionization source are discussed at the end.

A Radical-Mediated Pathway for the Formation of [M + H]+ in Dielectric Barrier Discharge Ionization

“…However, this neglects the possibility that both mechanisms contribute (proton transfer and/or direct ionization followed by a hydrogen atom transfer). After decades of experience with APCI and the development of a vast number of new APCI-like ionization methods [17], there is still insufficient experimental evidence regarding the actual protonation pathways and their contribution to the formation of [M + H] + . An improved understanding of the ionization mechanism would therefore allow the enhancement of APCI-like ambient ionization methods for the detection of specific compounds and for increased sensitivity.…”

Dielectric barrier discharge plasma atomizer for hydride generation atomic absorption spectrometry—Performance evaluation for selenium

“…As such, DBD devices of different designs can be coupled to atomic absorption/fluorescence detectors as well as combined with optical emission spectrometry [2][3][4][5][6][7][8][9] and ambient mass spectrometry [10][11][12][13][14].…”

Time-resolved line emission spectroscopy and the electrical currents in the plasma jet generated by dielectric barrier discharge for soft ionization

“…Moreover, DBDs have additional favorable features like high dissociation ability at low working temperature and low power consumption [1], operation with a variety of gases at low flow rates and versatile geometry [2], which make them attractive as a base for construction of variety of analytical devices. Recent reviews [2][3][4] summarize the basics of DBDs operation, their development and the potential for future applications. Due to their favorable characteristics, a number and diversity of DBDs applications have extended beyond the molecular mass spectrometry [5][6][7][8].…”