Applications of high‐performance mass spectrometry to the surface analysis of materials

Schuetzle, Dennis; Riley, T. L.; Vries, J E de; Prater, T. J.

doi:10.1002/mas.1280030404

Cited by 19 publications

(4 citation statements)

References 208 publications

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“…HRMS Analysis. HRMS analysis and the exact mass information which it provides was used as a screening technique for determining the possible presence of nitro-PAH compounds in HPLC-fractionated diesel extracts (25). Only a few nitro-PAH were tentatively identified (Table I) in the yu and yly HPLC fractions (Figure 1) by this technique.…”

Section: Resultsmentioning

confidence: 99%

Analysis of nitrated polycyclic aromatic hydrocarbons in diesel particulates

Schuetzle¹,

Riley²,

Prater³

et al. 1982

Anal. Chem.

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265

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The analysis of nitrated polycyllc aromatic hydrocarbons (nltro-PAH) In diesel particulate extracts using a combination of high-performance liquid chromatography, gas chromatography/mass spectrometry, hlgh-resolutlon mass spectrometry, and mass spectrometry/mass spectrometry (MS/MS) techniques Is described. Triple stage quadrupole (TSQ)-MSZMS operated In the constant neutral loss mode Is described for the rapid qualitative screening of nltro-PAH Isomer groups In solvent extracts of diesel particulates. Twenty such Isomer groups of nltro-PAH derivatives were found, many of these groups containing a large number of possible compounds.Mass analyzed Ion kinetic energy spectrometry (MIKES)-MS/MS was found to be much less selective than the TSQ-MS/MS for the analysis of nltro-PAH In unfractionated diesel extracts. HPLC prefractlonatlon was required to remove Interferences In the MIKES analysis. Fused silica capillary GC/MS using on-column Injection was found to be necessary for Indentlfylng specific nltro-PAH Isomers and minimizing decomposition. The highly mutagenic 1-nltropyrene (1-NP) was the only compound found In the nltro(pyrenes and fluoranthenes) Isomer group. The MIKES and TSQ techniques gave comparable results for the quantitation of 1-NP.Organic solvent extracts of diesel exhaust particulates exhibit direct-acting (i.e., activation by mammalian tissue homogenate is not required) mutagenicity (1-5) using the Ames assay (6). High-performance liquid chromatography (HPLC) (1,2,4,5), thin-layer chromatography (TLC) (7,8), and liquid chromatography (9) have been used to fractionate diesel particulate extracts for subsequent mutagenicity testing.

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Section: Resultsmentioning

confidence: 99%

Analysis of nitrated polycyclic aromatic hydrocarbons in diesel particulates

Schuetzle¹,

Riley²,

Prater³

et al. 1982

Anal. Chem.

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265

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“…In order to overcome these problems, and maximize the flexibility of processing ion micrographs, direct storage of ion micrographs on video tape has been suggested (12,18,19). In their review, Shuetzle et al (19) briefly describe such a video tape system; however, they state that the accuracy of their system for quantitatively preserving image information has not yet been established. We have inserted the video image continuous acquisition recorder (VICAR) consisting of a video tape recorder (VTR), a time base corrector (TBC), and a video animation system (VAS) into the MIDAS system.…”

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confidence: 99%

A versatile video tape system for storage and selective retrieval of ion images for digital acquisition and processing

Brenna¹,

Moran²,

Morrison³

1986

Anal. Chem.

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“…The necessity for fast data sampling during the elution of narrow capillary column GC peaks requires an increase in magnet scan rates in the GQ inode at the expense of accurate mass measurments. Often selected ion monitoring (SIM) and peak matching techniques, which are disadvantageous in the analysis of unknown mixtures, must be used during the GC/MS run (3)(4)(5)(6)(7). Superior to SIM would be accurate mass analysis of the entire mass spectrum during the course of a dynamic GC/MS experiment.…”

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confidence: 99%