Rapid Analysis of Polychlorinated Biphenyls in the Gas Phase with Resonance-enhanced Two-photon Ionization: Optimal Injection of Ions into the Ion-trap Storage/Time-of-flight Mass Spectrometer

Dobashi, Shinsaku; Kira, Masaharu; Tanaka, Ryuichiro; Izawa, Yoshinori; Deguchi, Yoshihiro; Kubota, Takeshi; Wada, Akira; Hara, Michikazu

doi:10.2116/analsci.21.1111

Cited by 3 publications

(2 citation statements)

References 39 publications

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“…[28][29][30] Also, studies of neutral volatile substances such as halocarbon compounds in air were performed using ion-trap/TOF devices. 28,[30][31][32][33][34][35] The innovation of the instrument presented here is the ability to analyze not only volatile but also nonvolatile neutrals sampled at atmospheric conditions. This article describes the design and performance of an ion-trap/linear time-of-flight mass spectrometer in which analyte originating either from laser ablation or from volatile compounds are sampled by a home-built atmospheric pressure direct-sampling interface.…”

Section: Introductionmentioning

confidence: 99%

Design and performance of an atmospheric pressure sampling interface for ion-trap/time-of-flight mass spectrometry

Setz

Schmitz

Zenobi

2006

Review of Scientific Instruments

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An ion-trap/time-of-flight mass spectrometer in combination with an atmospheric pressure sampling interface was developed in order to simultaneously profit from the ease of sample handling at ambient pressure, from the storage and accumulation capabilities of an ion trap, and from the acquisition speed and sensitivity of a time-of-flight mass spectrometer. The sampling interface is an intermediate-pressure vacuum manifold that serves to enrich sampled analytes by jet separation with respect to the carrier gas ͑air͒ and simultaneously maintain vacuum conditions inside the ion-trap/ time-of-flight instrument. Neutral analyte molecules are sampled and later ionized either by electron impact or chemical ionization. Ion accumulation is performed with a rf-only quadrupole ion trap with ground potential on the end caps during storage. For mass analysis, the trap's electrodes serve as a pulsed ion source for the attached linear time-of-flight mass spectrometer. In addition, laser desorbed molecules can also be sampled with this kind of instrument. Successful operation is shown by analyzing volatile substances ͑aniline, bromobenzene, styrene, and perfluorotributylamine͒, as well as laser-desorbed organic solids. Figures of merit include a sensitivity of 10 ppm, resolving power of 300 and demonstration of a mass spectrum of laser-desorbed anthracene with a signal-to-noise ratio of 270.

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Section: Introductionmentioning

confidence: 99%

Design and performance of an atmospheric pressure sampling interface for ion-trap/time-of-flight mass spectrometry

Setz

Schmitz

Zenobi

2006

Review of Scientific Instruments

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“…The authors of the present study have applied laser ionization TOFMS to the measurement of chlorinated aromatic hydrocarbons, and have demonstrated the effectiveness of this method for real-time measurements. [7][8][9][10][11] The objective of the research reported here was to develop a measurement system capable of measuring chlorinated aromatic hydrocarbons quite rapidly, thus leading to the development of the laser ionization TOFMS (time-of-flight mass spectrometry) method. The laser ionization method uses resonance enhanced two-photon ionization.…”

Section: Introductionmentioning

confidence: 99%

Real-time Monitoring of Monochlorinated Benzene and Polychlorinated Biphenyls in the Gas Phase with On-line Detection: High Chemical Selectivity of Resonance-Enhanced Two-Photon Ionization

et al. 2006

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Current literature in mass spectrometry

2006

J. Mass Spectrom.

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The birdcage: The title anion, which contains two endohedral d10 metal atoms, is the second known ternary cluster anion comprising only metal atoms (see picture: Sn orange, Sn/Bi blue, Ni black). The K([2.2.2]crypt) salt was obtained upon reaction of the binary precursor [Sn2Bi2]2− with [Ni(cod)2] in ethylenediamine/toluene by a complicated fragmentation/re‐arrangement process. X‐ray diffraction and DFT calculations confirm the composition of the anion.

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Rapid Analysis of Polychlorinated Biphenyls in the Gas Phase with Resonance-enhanced Two-photon Ionization: Optimal Injection of Ions into the Ion-trap Storage/Time-of-flight Mass Spectrometer

Cited by 3 publications

References 39 publications

Design and performance of an atmospheric pressure sampling interface for ion-trap/time-of-flight mass spectrometry

Design and performance of an atmospheric pressure sampling interface for ion-trap/time-of-flight mass spectrometry

Real-time Monitoring of Monochlorinated Benzene and Polychlorinated Biphenyls in the Gas Phase with On-line Detection: High Chemical Selectivity of Resonance-Enhanced Two-Photon Ionization

Current literature in mass spectrometry

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