Spark-induced breakdown spectroscopy (SIBS) is a recently developed atomic-fluorescence-based analytical technique that is analogous to laser-induced breakdown spectroscopy. SIBS, however, uses an electrical plasma generation method on nonconductive samples instead of a focused laser beam. Here we describe the basic characteristics of SIBS and its application to the field-screening analysis of soil, using a standard addition analytical approach. Detection limits of ~25 mg/kg have been seen for lead, chromium, barium, mercury, and cadmium. A variety of soils have been tested, some cocontaminated with organic material and uranium (<sup>238</sup>U).
© 2003 Optical Society of America
Amy J. R. Hunter, Richard T. Wainner, Lawrence G. Piper, and Steven J. Davis, "Rapid Field Screening of Soils for Heavy Metals with Spark-Induced Breakdown Spectroscopy," Appl. Opt. 42, 2102-2109 (2003)