3  Mass spectrometry of free radicals: a methodological overview

Sablier, Michel; Fujii, Toshihiro

doi:10.1039/b408852m

Cited by 9 publications

(3 citation statements)

References 156 publications

(259 reference statements)

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“…With respect to the CCl 3 radical, the only relevant study was reported by Adams et al [9], who used a flowing afterglow/Langmuir probe apparatus to measure a rate coefficient for a secondary process of DEA to CCl 3 • formed in the primary DEA to CCl 4 . Also, the CCl 3 radical has been studied, both theoretically and experimentally, using mass spectrometry, laser spectroscopy, and ab initio calculations [20,[30][31][32]. From these calculations, electron impact IE and photon impact IE for CCl 3 • were reported previously, but no data on the EIF of CCl 3…”

Section: *Correspondence To: E-mail Sylwiaptasinska1@ndedu; Tel + mentioning

confidence: 99%

Characterization of Neutral Radicals from a Dissociative Electron Attachment Process

et al. 2017

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Section: *Correspondence To: E-mail Sylwiaptasinska1@ndedu; Tel + mentioning

confidence: 99%

Characterization of Neutral Radicals from a Dissociative Electron Attachment Process

et al. 2017

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“…On the other hand we have shown recently that Li + ion attachment mass spectrometry (IAMS) is better than traditional EI-MS [11][12][13][14][15] for the monitoring of the thermally labile Cu(hfac)(tmvs) found in a copper chemical vapor deposition (Cu-CVD) reactor compared with the monitoring capabilities of traditional EI-MS. Unlike the EI-MS, which induces ionization by means of high-energy electrons, IAMS preserves the structure of the Cu(hfac)(tmvs) molecules, allowing us to detect them as adduct ions without any fragmentation.…”

Section: Introductionmentioning

confidence: 99%

Temperature-resolved thermal analysis of cisplatin by means of Li+ ion attachment mass spectrometry

Takahashi

Kitahara

Nakamura

et al. 2010

Phys. Chem. Chem. Phys.

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Li(+) ion attachment mass spectrometry (IAMS) was evaluated as an analytical methodology for measurement of the thermally labile, nonvolatile, and insoluble compound cisplatin, which is used as an anticancer agent in the treatment of testicular and ovarian cancers. We aimed to develop an improved method for the mass spectrometric determination of cisplatin, particularly in its molecular ion form. A uniquely designed quadrupole mass spectrometry system along with a Li(+) ion attachment technique and a direct inlet probe provided cisplatin molecular ions as Li(+) ion adducts; to our knowledge this is the first reported instance of cisplatin Li(+) ion adducts. Full-scan spectra were obtained with approximately 10 microg samples. Infrared image furnace-ion attachment mass spectrometry (IIF-IAMS) also was used to study the temperature-programmed decomposition of this drug. The slope of the plot of signal intensity versus temperature for cisplatin decomposition from 225 to 249 degrees C was used to determine an apparent activation energy (E(a)) of 38.0 kcal mol(-1) for the decomposition of cisplatin. This decomposition parameter is useful for predicting drug stability (shelf life). In this study, we have demonstrated that IAMS can be a valuable technique for the direct mass spectral analysis and kinetic study of d-metal complex platinum anticancer agents.

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“…Reactive species in the centre stream are thereby accessible to identification and study. By such an approach, a large number of reactive intermediate studies, probably exceeding one hundred, have been carried out over several decades [46][47][48][49][50][51][52][53][54]. In fact, a method sometimes used for generating reactive species of interest has been corona discharge.…”

Section: Introductionmentioning

confidence: 99%

Highly Reliable Dynamic Random Access Memory Technology for Application Specific Memory with Dual Nitrogen Concentration Gate Oxynitrides Using Selective Nitrogen Implantation

Sugizaki¹,

Murakoshi²,

Katsumata³

et al. 2003

Jpn. J. Appl. Phys.

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Nonthermal plasma (NTP)-based treatments of volatile organic compounds (VOCs) have potential for effective environmental remediation. Theory and experiment that consider the basic science pertaining to discharge events have helped improve NTP remediation outcomes. If direct information on early post-discharge chemical intermediates were also available, it would likely lead to additional improvement in NTP remediation outcomes. To this point, however, experiments yielding direct information on post-NTP VOC intermediates have been limited. An approach using supersonic expansion molecular beam methods offers general promise for detection of post-discharge VOC intermediates. To illustrate the potential utility of these methods, we present mass spectra showing the growth of early products formed when pulsed corona discharges were carried out on toluene in He and then in He with added O 2 . Good general detection of neutral post-discharge species was obtained using 800 nm 150 fs photoionization pulses.

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3 Mass spectrometry of free radicals: a methodological overview

Cited by 9 publications

References 156 publications

Characterization of Neutral Radicals from a Dissociative Electron Attachment Process

Characterization of Neutral Radicals from a Dissociative Electron Attachment Process

Temperature-resolved thermal analysis of cisplatin by means of Li+ ion attachment mass spectrometry

Highly Reliable Dynamic Random Access Memory Technology for Application Specific Memory with Dual Nitrogen Concentration Gate Oxynitrides Using Selective Nitrogen Implantation

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