Analysis of the isomeric methylchrysenes by matrix isolation fluorescence and Fourier transform infrared spectrometry

1978 ◽  
Vol 50 (8) ◽  
pp. 1189-1193 ◽  
Author(s):  
P. Tokousbalides ◽  
E. Ray. Hinton ◽  
Richard B. Dickinson ◽  
Paul V. Bilotta ◽  
E. L. Wehry ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Matrix Isolation ◽  
Fourier Transform Infrared ◽  
Infrared Spectrometry ◽  
Fourier Transform Infrared Spectrometry

Matrix Isolation Microsampling Procedures in Quantitative Fourier Transform Infrared Spectrometry

1979 ◽  
Vol 33 (5) ◽  
pp. 477-480 ◽  
Author(s):  
Doyle M. Hembree ◽  
E. Ray Hinton ◽  
Richard R. Kemmerer ◽  
Gleb Mamantov ◽  
E. L. Wehry
Keyword(s):  
Fourier Transform ◽  
Matrix Isolation ◽  
Gaseous Mixture ◽  
Detection Limits ◽  
Fourier Transform Infrared ◽  
Infrared Spectrometry ◽  
Infrared Analysis ◽  
Fourier Transform Infrared Spectrometry ◽  
Cold Surface ◽  
Qualitative And Quantitative

Techniques for microsampling in infrared spectroscopy by matrix isolation are described. In the matrix isolation of liquid or solid compounds, the sample is vaporized and then diluted with a large excess of a matrix gas; the resulting gaseous mixture is deposited on a cold surface for spectroscopic examination as a solid. Detailed descriptions of the apparatus and procedures employed in the preparation of matrix-isolated samples for qualitative and quantitative analyses by Fourier transform infrared spectrometry are presented. Systems for “microsampling” (detection limits for specific compounds ∼0.5 to 1 μg) and “ultramicrosampling” (detection limits ∼50 to 100 ng) matrix isolation spectroscopy are described. Detection limits and Beer's law behavior for polycyclic aromatic hydrocarbons microsampled by matrix isolation are discussed. The advantages of matrix isolation as a technique for qualitative and quantitative infrared analysis of microsamples are itemized.

Analysis of Polycyclic Aromatic Compounds Containing Nitrogen and Oxygen by Matrix Isolation Fourier Transform Infrared Spectroscopy

1982 ◽  
Vol 36 (4) ◽  
pp. 348-352 ◽  
Author(s):  
A. A. Garrison ◽  
G. Mamantov ◽  
E. L. Wehry
Keyword(s):  
Fourier Transform ◽  
Aromatic Hydrocarbons ◽  
Matrix Isolation ◽  
Fourier Transform Infrared ◽  
Infrared Spectrometry ◽  
Toxic Substances ◽  
Fourier Transform Infrared Spectrometry ◽  
Pure Compounds ◽  
Polycyclic Aromatic ◽  
Coal Liquefaction Products

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.

The Use of Fourier Transform Infrared Spectrometry for Monitoring the Retention of Polymers in the Vitreous Humour

1995 ◽  
Vol 5 (3) ◽  
pp. 185-193 ◽  
Author(s):  
Paul D. Dalton ◽  
Alan Jefferson ◽  
Ye Hong ◽  
Traian V. Chirila ◽  
Sarojini Vijayasekaran ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Fourier Transform Infrared ◽  
Vitreous Humour ◽  
Infrared Spectrometry ◽  
Fourier Transform Infrared Spectrometry
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