Laser-induced fluorescence spectrometry of polycyclic aromatic hydrocarbons isolated in vapor-deposited n-alkane matrices
作者： Jon R. Maple , E. L. Wehry , Gleb. Mamantov
DOI: 10.1021/AC50056A034
关键词: Photochemistry 、 Alkane 、 Mass spectrometry 、 Fluorescence 、 Chemistry 、 Laser-induced fluorescence 、 Fluorescence spectroscopy 、 Heptane 、 Spectroscopy 、 Analytical chemistry 、 Fluorescence spectrometry
摘要: The analytical utility of fluorescence spectrometry polycyclic aromatic hydrocarbons matrix isolated in vapor-deposited, annealed n-heptane deposits is considered. Much greater spectral resolution can be obtained heptane than conventional (nitrogen or argon) matrices; the possibilities for selective excitation alkane matrices individual compounds multicomponent samples exploited effectively only if dye-laser utilized. In contrast, laser offers few general advantages over lamp matrix-isolation fluorometry matrices. quantitative aspects (linear dynamic range, precision, applicability to mixtures) n-alkane media also are discussed. 6 figures.
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