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Analysis of Emission Index Spectra.
NIOSH 1973 Dec:35 pages
This report describes the research conducted in an effort to analyze some of the Emission Index Spectra obtained under Contract No. 099- 71-0042. Qualitative and quantitative spectra of purified fluoranthrene (206440), pyrene (129000), benz(c)acridine (225514), chrysene (218019), benzo(a)anthracene (56553) benzo(a)anthrone, benzo(b)fluoranthrene (205992), benzo(j)fluoranthene (205823), benzo(k)fluoranthrene (207089), benzo(e)pyrene (192972), benzo(a)pyrene (50328), dibenz(a,h)anthracene (53703), benzo(g,h,i)perylene, and anthanthrene along with mixtures of these polynuclear aromatic (PNA) compounds are presented. Wavelengths for fluorescence and excitation maxima are established in iso-octane. Evidence is presented which indicates loss of PNA's to cyclohexane during the extraction procedure outlined in PSM-1014. Tables are presented which show the analyses of the spectra of subsets H-48, H- 49, H-50, H-51, H-52, H-53, GFA-495, GFA-476, GFA-477, GFA-479, and GFA-480. Because the fluorescence and excitation maxima occur at the same wavelengths for a number of the PNA's, positive identification of each PNA present is impossible. The evidence suggests that the Emission Index Method cannot be used as a quick quantitative scanning tool. (Contract No. 099-73-0042)
NIOSH-Contract; Contract-099-73-0042; Polynuclear-hydrocarbons; Analytical-methods; Outflow; Toxic-substances; Aromatic-polycyclic-hydrocarbons; Coke-oven-emissions; Organic-solvents; Emission-spectrometry; Extraction; Hydrocarbons; Fluorometry;
206-44-0; 129-00-0; 225-51-4; 218-01-9; 56-55-3; 205-99-2; 205-82-3; 207-08-9; 192-97-2; 50-32-8; 53-70-3;
NTIS Accession No.
Union Carbide Corporation, Carbon Products Division, Parma Technical Center, Cleveland, Ohio, NIOSH Contract No. 099-73-0042, 35 pages
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division