Abstract

Previous publications from this laboratory have demonstrated the utility of metastable transfer emission spectrometry (MTES) for the detection of hydrocarbons, oxy- and phosphoorganics, metal alkyls, and hydrides. MTES is a gas-phase technique in which the compounds of interest react with active nitrogen, produced by a microwave discharge, to yield chemiluminescent reaction products. For example, carbon-, oxygen-, and phosphorous-containing compounds are detected after reacting with active nitrogen at 8 to 30 Torr by monitoring the following emission lines: —C— + active nitrogen → CN(<i>B</i>²Σ⁺ → <i>X</i>²Σ⁺), 383 to 388 nm R—O—H + active nitrogen → OH(<i>A</i>²Σ⁺ → <i>X</i>²Π), 302.2 nm —P— + active nitrogen → PN(<i>A</i>²Π → <i>X</i>²Σ), 251.8 nm

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