The feasibility of using laser-induced plasma spectroscopy (LIPS) as a rapid and simple method to analyze fluorine, chlorine, and bromine in solid organic compounds was investigated. A Nd:YAG laser at 1064 nm with pulse energy of 100 mJ was used to produce the plasma. This method presents many advantages for the determination of halogens in organic compounds, including very simple sample preparation and near-real-time analysis. Solid organic compounds were measured in air and helium atmospheres. Carbon in organic compounds was chosen as the internal standard for the measurement of F, Cl, and Br. Linear responses for these elements were obtained for both atmospheres. However, the sensitivity was much higher and the background noise was much lower in the helium atmosphere.
Michael Tran, Qing Sun, Benjamin W. Smith, and James D. Winefordner, "Determination of F, Cl, and Br in Solid Organic Compounds by Laser-Induced Plasma Spectroscopy," Appl. Spectrosc. 55, 739-744 (2001)
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