Laser-induced phosphorescence spectrometry of halogenated naphthalene derivatives prepared in vapor-deposited parent molecule matrices

• Published in: Analytical chemistry (Washington) Vol. 61; no. 8; pp. 872 - 876
• Main Authors: Pace, Charles F, Maple, Jon R
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 15-04-1989
• Subjects: 400102 - Chemical & Spectral Procedures; 400105 - Separation Procedures; Analytical chemistry; AROMATICS; CHEMICAL ANALYSIS; Chemistry; CONDENSED AROMATICS; DATA; DEPOSITION; EMISSION SPECTROSCOPY; Exact sciences and technology; EXPERIMENTAL DATA; FLUIDS; GASES; HYDROCARBONS; INFORMATION; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; LASERS; LUMINESCENCE; MATRIX ISOLATION; NAPHTHALENE; NUMERICAL DATA; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; PHOSPHORESCENCE; POLLUTANTS; QUANTITATIVE CHEMICAL ANALYSIS; RESOLUTION; Spectrometric and optical methods; SPECTROSCOPY; TRACE AMOUNTS; VAPORS; Chemical analysis; Naphthalene; Induction; Detection limit; Laser; Phosphorescence spectrometry; Benzenic compound; Calibration; Halocarbon; Naphthalene derivatives
• ISSN: 0003-2700; 1520-6882
• DOI: 10.1021/ac00183a018

The analytical merits of laser-induced phosphorescence spectrometry for the multicomponent analysis of halogenated aromatic hydrocarbon derivatives have been assessed for a prototype system consisting of chloronaphthalenes and bromonaphthalenes. By preparation of samples in low-temperature, vapor-deposited parent molecule matrices and use of laser excitation, the high resolution, high selectivity, and low detection limits that characterize laser-induced fluorescence spectrometry have been extended to analytical phosphorimetry. A detection limit of ca. 0.8 pg for 1,4-dichloronaphthalene is demonstrated, and high-resolution phosphorescence spectra with monochromator-limited bandwidths of ca. 10 cm{sup {minus}1} are presented, along with examples of analytical selectivity in the spectral and time domains.