A new instrument for spatially resolved laser desorption/laser multiphoton ionization mass spectrometry

Voumard, Pierre; Zhan, Qiao; Zenobi, Renato

doi:10.1063/1.1143963

Cited by 31 publications

(34 citation statements)

References 18 publications

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“…This laser beam geometry gives a larger ionization volume and should increase the system sensitivity and allow the measure of mass spectra for significantly lower laser fluences than that possible with a spot focused laser. It is noted from the literature that Zenobi and co-workers [16,17] used a focused laser sheet for the ionization process.…”

Section: Methodsmentioning

confidence: 98%

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Influence of the photoionization process on the fragmentation of laser desorbed polycyclic aromatic hydrocarbons

Thomson

Ziskind

Mihesan

et al. 2007

Applied Surface Science

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Section: Methodsmentioning

confidence: 98%

“…For this purpose various strategies have been suggested including REMPI for selective ionization [16,18,19]. However, Haefliger and Zenobi demonstrated that single wavelength, two photon REMPI is not very selective for desorbed PAH because of the high temperature of the PAH gas [17].…”

Section: Evolution Of the Mass Spectra With The Ionization Fluence: Smentioning

confidence: 99%

Influence of the photoionization process on the fragmentation of laser desorbed polycyclic aromatic hydrocarbons

Thomson

Ziskind

Mihesan

et al. 2007

Applied Surface Science

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“…For example, PM on filters was characterized by infrared (IR) laser desorption followed by resonance twophoton ionization (R2PI) with an UV laser. 159 Matrix effects that can deleteriously affect quantitation are eliminated by liberating neutral species from the particles with the IR laser pulse in the first step. This approach was applied to different types of samples including ambient organic aerosols, 160,161 tobacco smoke, 162 and PAHs.…”

Section: Anion-exchange Chromatographymentioning

confidence: 99%

Review of Recent Advances in Detection of Organic Markers in Fine Particulate Matter and Their Use for Source Apportionment

Lin

Lee

Eatough

2010

Journal of the Air & Waste Management Association

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Fine particulate matter is believed to be more toxic than coarse particles and to exacerbate health problems such as respiratory and cardiopulmonary diseases. Specific organic compounds within atmospheric fine particulate material can be used to differentiate specific inputs from various emissions and thus is helpful in identifying the major urban air pollution sources that contribute to these health problems. Particular marker compounds that carry signature information about different emission sources (i.e., gasoline or diesel motor vehicles, wood smoke, meat cooking, vegetative detritus, and cigarette smoke) are reviewed. Aerosol organic types (e.g., from mass spectrometry data, which can also help in elucidation of carbonaceous material sources) are also discussed. Apportionment of the primary source contributions and atmospheric processes contributing to fine particulate matter and fine particulate organic material concentrations are outlined. This review provides an overview of the latest developments in chemical characterization approaches for identification and quantification of compounds in complex organic mixtures associated with fine atmospheric particles and their use in chemical mass balance (CMB) and positive matrix factorization (PMF) source apportionment models.

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“…The development of new ion sources such as matrix‐assisted laser desorption/ionisation (MALDI)2 and electrospray ionisation (ESI)3 has further stimulated improvements in TOFMS, which has now become the mass analyser of choice for many applications, particularly in the biosciences. Our group4 and others5–8 have developed the use of laser desorption/laser ionisation TOFMS, or L2MS, for in situ analysis of large organic molecules. Time‐of‐flight mass spectrometry lends itself well to the study of metal clusters, as the technique is ideally suited to pulsed sources such as laser vaporisation (LVS) and pulsed arc cluster ion sources (PACIS).…”

mentioning

confidence: 99%

Laser photo-induced dissociation using tandem time-of-flight mass spectrometry

Quiniou

Yates

Langridge‐Smith

2000

Rapid Commun. Mass Spectrom.

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A novel tandem time-of-flight (TOF) mass spectrometer has been developed for studying the photo-induced dissociation of large molecules and elemental clusters. It consists of a linear first stage TOF analyser for primary mass separation and precursor ion selection, and a second orthogonal reflecting field TOF analyser for product ion analysis. The instrument is equipped with a large volume throughput molecular beam source chamber allowing the production of jet-cooled molecules and molecular clusters, as well as elemental clusters, using either a pulsed laser vaporisation source (LVS) or a pulsed are cluster ion source (PACIS). A second differentially pumped chamber can be used with effusive sources, or for infrared laser desorption of large molecules, followed by laser ionisation. These primary ions can then be irradiated with a second, high energy laser to induce photodissociation. Detailed information about the fragmentation mechanisms can be deduced from the product ion mass spectra. Preliminary results on the photo-induced dissociation (PID) of the molecule ion of aniline at 266 nm are presented. In this case the molecule ions were generated via two-photon laser ionisation at 266 nm using an effusive source. Results for the collision-induced dissociation (CID) of the aniline molecule ion, using a commercial mass spectrometer equipped with an atmospheric pressure electrospray ionisation interface, are also presented. Copyright 2000 John Wiley & Sons, Ltd.

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A new instrument for spatially resolved laser desorption/laser multiphoton ionization mass spectrometry

Cited by 31 publications

References 18 publications

Influence of the photoionization process on the fragmentation of laser desorbed polycyclic aromatic hydrocarbons

Influence of the photoionization process on the fragmentation of laser desorbed polycyclic aromatic hydrocarbons

Review of Recent Advances in Detection of Organic Markers in Fine Particulate Matter and Their Use for Source Apportionment

Laser photo-induced dissociation using tandem time-of-flight mass spectrometry

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