Laser ablation for mineral analysis in the human body: integration of LIFS with LIBS

Details Laser ablation for mineral analysis in the human body: integration of LIFS with LIBS Laser ablation for mineral analysis in the human body: integration of LIFS with LIBS

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spie.3570..263s&link_type=abstract

Proc. SPIE Vol. 3570, p. 263-271, Biomedical Sensors, Fibers, and Optical Delivery Systems, Francesco Baldini; Nathan I. Croitor

Biology

Scientific paper

Trace mineral analysis of the body is invaluable in biology, medicine and dentistry when considering the role of mineral nutrition and metabolism in the context of maintaining human health. The presence of key elements in the body, such as boron, calcium, chromium, copper, iron, silicon and zinc are known to be of vital importance, but are often found to be present in inadequate quantity. In sharp contrast, the accumulation of other elements, such as aluminum, cadmium, lead and mercury is less favorable, since frequently these metals are already toxic at extremely low concentration levels, interfering with essential chemical processing of vitamins and minerals. Here we report on the application of laser-induced breakdown spectroscopy and laser-induced fluorescence spectroscopy to the analysis of important minerals and toxic elements within the body. Samples from different parts of the body have been studied, including specimens of skin tissue, finger nails and teeth. It is particularly noteworthy that specific sample preparation was not needed for any of these laser spectroscopic measurements, but that specimens could be used as taken from the source.

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