Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 385, Issue 2, Pages 333-337Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-006-0345-1
Keywords
halogens; ambient gas; plasma; sulfur
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Sulfur has been detected in a spectral window (around 868 nm) previously unexplored by laser-induced breakdown spectrometry (LIBS), using an ablation laser with an ultraviolet wavelength, a gated detector, and inert ambient gas at a low, controlled pressure. This spectral window enables new-generation gated iCCD cameras to be used, which have adequate quantum efficiencies up to 900 nm. Application of our technique can substantially improve signal strength and thus extends the ability of LIBS to detect many nonmetallic elements.
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