Atmospheric Pressure Active Nitrogen (APAN)—A New Source for Analytical Spectroscopy

Abstract
An atmospheric pressure “active nitrogen” (APAN) afterglow was generated in pure flowing nitrogen (2) excited in an electrodeless ozonizer discharge. The afterglow, which contains several metastable species, has been observed to be an efficient source for the excitation of atomic emission, through energy transfer. The application of the APAN afterglow for the detection and determination of ultratrace levels of Hg and the volatile hydride forming elements, As, Bi, Ge, Pb, Sb, Se, Sn, and Te is documented.

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