Resonance-Enhanced Multiphoton Ionization Mass Spectrometry (REMPI-MS): Applications for Process Analysis

Streibel, Thorsten; Zimmermann, Ralf

doi:10.1146/annurev-anchem-062012-092648

Cited by 72 publications

(63 citation statements)

References 137 publications

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“…Mass-selective UV-spectroscopy or UV-selected mass spectra performed via resonance enhanced multiphoton ionization (REMPI) (Boesl, 1991(Boesl, , 1999(Boesl, , 2000 already find broad applications. For an introduction see for instance (Letokhov, 1987;Parks & Young, 2001); a recent example of mass selective molecular spectroscopy is REMPI on bromobenzene (Andrejeva et al, 2015); a recent overview of application of mass selective REMPI in chemical analysis (Streibel & Zimmermann, 2014).…”

Section: Mass Selective Molecular Spectroscopymentioning

confidence: 99%

Time-of-flight mass spectrometry: Introduction to the basics

Boesl

2016

Mass Spec Rev

100

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The intention of this tutorial is to introduce into the basic concepts of time-of-flight mass spectrometry, beginning with the most simple single-stage ion source with linear field-free drift region and continuing with two-stage ion sources combined with field-free drift regions and ion reflectors-the so-called reflectrons. Basic formulas are presented and discussed with the focus on understanding the physical relations of geometric and electric parameters, initial distribution of ionic parameters, ion flight times, and ion flight time incertitude. This tutorial is aimed to help the applicant to identify sources of flight time broadening which limit good mass resolution and sources of ion losses which limit sensitivity; it is aimed to stimulate creativity for new experimental approaches by discussing a choice of instrumental options and to encourage those who toy with the idea to build an own time-of-flight mass spectrometer. Large parts of mathematics are shifted into a separate chapter in order not to overburden the text with too many mathematical deviations. Rather, thumbrule formulas are supplied for first estimations of geometry and potentials when designing a home-built instrument, planning experiments, or searching for sources of flight time broadening.

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Section: Mass Selective Molecular Spectroscopymentioning

confidence: 99%

Time-of-flight mass spectrometry: Introduction to the basics

Boesl

2016

Mass Spec Rev

100

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“…Resonance enhanced multiphoton ionization (REMPI) coupled to time-of-flight mass spectrometry (TOFMS) is a powerful technique in this respect, particularly for online measurements of PAHs in gaseous samples. Since its very first application in the late 1970s [1][2][3], REMPI-TOFMS has been evolved as a versatile tool for the selective and sensitive analysis of PAHs in combustion processes and environmental monitoring [4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Determination of Relative Ionization Cross Sections for Resonance Enhanced Multiphoton Ionization of Polycyclic Aromatic Hydrocarbons

et al. 2018

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Resonance enhanced multiphoton ionization (REMPI) is a powerful method for the sensitive determination of polycyclic aromatic hydrocarbons (PAHs) in gaseous mixtures via mass spectrometry (MS). In REMPI, ions are produced by the absorption of at least two photons including defined electronic intermediate states. As a result—unlike other laser-based ionization techniques—spectroscopic selectivity is involved into the ionization process. Nevertheless, these wavelength-dependent ionization rates impede the quantification using REMPI. For this purpose, relative photoionization cross sections (relPICS) give an easy-to-use approach to quantify REMPI-MS measurements. Hereby, the ionization behavior of a single compound was compared to that of a reference substance of a given concentration. In this study, relPICS of selected single-core aromatics and PAHs at wavelengths of 266 nm and 248 nm were determined using two different time-of-flight mass spectrometric systems (TOFMS). For PAHs, relPICS were obtained which showed a strong dependence on the applied laser intensity. In contrast, for single-core aromatics, constant values of relPICS were determined. Deviations of relPICS between both TOFMS systems were found for small aromatics (e.g., benzene), which can be assigned to the differences in UV generation in the particular system. However, the relPICS of this study were found to be in good agreement with previous results and can be used for system-independent quantification.

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“…Fast measurement techniques that do not require a sample to be transported from the sampling location for analysis provide PCDD/F emission numbers rapidly and continuously, which is beneficial from both a regulatory and plant operations perspective. Streibel and Zimmermann [36] classified measurement techniques into four categories based on how closely they were connected to the measured processes, as listed in Table 2. Accordingly, "fast measurement techniques" refers to online and atline techniques.…”

Section: Requirement Of Fast Measurement Of Pcdd/fsmentioning

confidence: 99%

“…REMPI enhances sensitivity through selective ionization of the target analytes with specific electronic energy structure and TOFMS provides complete analysis of ion and fragment masses with a high duty cycle [78]. The combination of REMPI with TOFMS was considered to be effective for the online measurement of aromatic compounds in process analysis such as flame sampling, vehicle exhaust and incinerators [36,83,84].…”

Section: Rempi-tofmsmentioning

confidence: 99%

Fast indirect measurement of PCDD/F TEQ emission from municipal solid waste incineration: a review

Cao

Stevens

et al. 2019

Waste Dispos. Sustain. Energy

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Landfilling, a traditional and major method for municipal solid waste management, is gradually being taken place by incineration. However, the contamination problem caused by polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) emissions from incineration has also brought much concerns. Traditional offline method based on high-resolution gas chromatography coupled with high-resolution mass spectrometry for the determination of PCDD/F emissions is expensive, infrequent and time-lagging. Use of PCDD/F indicators to achieve fast indirect measurements for PCDD/Fs is a much more promising method. Six categories of potential PCDD/F indicators are discussed in this paper: CO, total hydrocarbons, specific PCDD/F congeners, polycyclic aromatic hydrocarbons, chlorophenols and chlorobenzenes. Their performance as PCDD/F indicators are verified in the following criteria: (1) structural similarities; (2) known mechanistic arguments; (3) known correlation values from the literature and (4) detectability. Comprehensively considering the four factors, chlorobenzenes may be the best suitable PCDD/F indicator. One analytical method based on Photon Ionization coupled with Time-of-Flight Mass Spectrometry has been proved effective for the online/atline measurements for PCDD/F indicators for the prediction of TEQ in incineration process. Moreover, thermal desorption and gas chromatography can be applied to provide extra separation and concentration for very complex matrices with extremely low concentrations.

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Resonance-Enhanced Multiphoton Ionization Mass Spectrometry (REMPI-MS): Applications for Process Analysis

Cited by 72 publications

References 137 publications

Time-of-flight mass spectrometry: Introduction to the basics

Time-of-flight mass spectrometry: Introduction to the basics

Determination of Relative Ionization Cross Sections for Resonance Enhanced Multiphoton Ionization of Polycyclic Aromatic Hydrocarbons

Fast indirect measurement of PCDD/F TEQ emission from municipal solid waste incineration: a review

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