Matrix isolation Fourier transform infrared spectrometric detection in the open tubular column gas chromatography of polycyclic aromatic hydrocarbons

1981 ◽  
Vol 53 (12) ◽  
pp. 1783-1788 ◽  
Author(s):  
D. M. Hembree ◽  
A. A. Garrison ◽  
R. A. Crocombe ◽  
R. A. Yokley ◽  
E. L. Wehry ◽  
...  
1982 ◽  
Vol 36 (4) ◽  
pp. 348-352 ◽  
Author(s):  
A. A. Garrison ◽  
G. Mamantov ◽  
E. L. Wehry

Matrix isolation sampling techniques are used in the qualitative and quantitative analysis of polar aromatic hydrocarbons. Fourier transform infrared spectrometry is used to characterize pure compounds isolated in nitrogen matrices and subsequently to identify individual components in mixtures. Compounds studied are polycyclic aromatic hydrocarbons containing nitrogen and oxygen heteroatoms or amine substituent groups. These toxic substances are common to coal liquefaction products. The analytical method chosen, matrix isolation Fourier transform infrared spectrometry, is capable of distinguishing between isomers differing only in the position of the heteroatom. Beer's law is obeyed in the range between 20 μg and 500 ng.


1989 ◽  
Vol 43 (8) ◽  
pp. 1344-1349 ◽  
Author(s):  
Jeffrey W. Childers ◽  
Nancy K. Wilson ◽  
Ruth K. Barbour

The capabilities of gas chromatography/matrix isolation-infrared (GC/MI-IR) spectrometry for detecting and identifying polycyclic aromatic hydrocarbons (PAHs) in urban air particulate matter are demonstrated. The ability of GC/MI-IR to discriminate between PAH isomers that are difficult to distinguish by conventional electron-impact ionization gas chromatography/mass spectrometry is shown. The MI-IR spectra of PAHs obtained under GC/MI-IR conditions are comparable to those reported in the literature that were obtained by using slow-spray-on matrix deposition techniques.


1987 ◽  
Vol 41 (6) ◽  
pp. 1048-1052 ◽  
Author(s):  
Philip J. Stout ◽  
Gleb Mamantov

Nitro polycyclic aromatic hydrocarbons (nitro-PAH), a class of compounds which has a number of anthropogenic sources, are potent mutagens. The application of matrix isolation Fourier transform infrared spectroscopy (MI/FT-IR) to the analysis of nitro-PAH was demonstrated. Samples were vaporized in a Knudsen cell and co-deposited with nitrogen on a CsI window cooled to 15 K. Spectra of twelve compounds were obtained for the purpose of forming a partial library of matrix-isolated nitro-PAH. Qualitative studies demonstrated the resolution and identification of components of complex and isomeric mixtures. The feasibility of quantitative analysis of nitro-PAH was demonstrated with the construction of a Beer's law plot of 1-nitropyrene. The plot was linear over two decades.


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